Some of the expressions in the article, with a strong emotional color

Editor’s note: This article comes from the WeChat public account “Linga Think Tank” (ID: laikazk) , author AA.

The muddy water’s enthusiasm for the short sale of China Prospective Shares was all poured into whom to learn from. Yesterday evening, the well-known short-selling agency Muddy Water once again released a short-selling report, and re-responded to the previous response to who learned from it.

At present, both the muddy water and who they learn from seem to be in a state of quantum entanglement.

For muddy water, the anonymous short report on Ruixing Coffee, which was previously posted on his push, lists quite detailed research data to prove that Ruixing ’s fraud has become the ultimate self-destruction of Ruixing. The fuse, of course, has also brought huge influence to the muddy water, and strengthened its stereotype of the massive amount of data fraud by Chinese Internet companies.

On May 18, Muddy Water issued a short report, claiming that there were a lot of frauds with whom to learn. At least 70% of the students were robots. It is suspected that at least 80% or even 90% of the revenue was generated by fraud. And on April 14th earlier, Citron released a report saying that whoever learned from it boasted up to 70% of its revenue, and then claimed that there was a 40% increase in registered users.

Since then, who responded to Xuexue, and then muddy water again sent a report to respond. In this latest report, Muddy Water refutes the argument with whom to learn. The main points are as follows:

In the last short report, Muddy Water believes that at least 70% of GSX ’s claimed users are fraudulent, and it is likely that the proportion of genuine fake users exceeds 80%. The muddy water proves the existence of who learns to pay the bill through “precision joiner”, “GSX IP joiner” and “burst joiner”.

Since then, who has learned to respond to this, two times respectively, the first time was in English, and Mushui thought that there was nothing dry, and the second was in Chinese on WeChat, and Mushui thought again, obviously Used to English in the US stock marketOf investors are not very friendly.

The muddy water repeatedly stressed that he insisted that GSX was a huge fraud-it was almost an empty box. And it also publicly recruits engineers to help it operate batches of robots, as demonstrated in the latest report.

Since then, Muddy Water also pointed out that there were some problems with the response to GSX IP Joiners. Muddy Water discussed how to analyze 463,217 login records for 54065 independent users. Muddy Water can encode employees (teachers and mentors) according to GSX, Identify them in the data. Then the muddy water found a fatal problem-28.2% of the students once shared an IP address with the GSX tutor or teacher. There are a total of 15,239 students. In the absence of a physics school or learning center, this makes Muddy Water believe that this is strong evidence of the use of robots.

At the same time, Muddy Water believes that GSX’s response to precise and sudden connectors is not enough. For example, burst connection, that is, a large number of users (such as 20 or 30 people) connect in the same second. Muddy Water said that he ruled out the unexpected events that occurred 5 minutes before the class to 5 minutes after the class.

The response of GSX at the time was that these two phenomena were caused by the transformation of the small class collective led by the teacher to the large class collective. However, Muddy Water believes that this does not explain the sudden connection phenomenon, because it eliminates the sudden connection within five minutes after the start of the class.

GSX ’s insufficient response to precise linkers is that if the instructor does not switch the small class before the start time of the large class, the system will automatically perform the switch. However, in the muddy water sample, 5742 users are accurate connectors, which is 10.6% of the sample. GSX pointed out that this small-to-large conversion is “typical”, and there is an auto-switching tutor. If so, then the proportion of accurate connectors will be much higher than 10.6%. Therefore, this interpretation is flawed.

The editor has always seen here, and feels that muddy water and GSX are still in place. No one can convince each other about the same problem. Muddy water actually lacks real hammers and strong evidence to support his point of view.

However, in this report, Muddy Water accused anyone of learning to conduct “server room operation and maintenance engineers” through open recruitment, which it believes is the proof of GXS’s self-built water army. It depends on who learns how to respond further.

Overall, the 6-page report of Muddy Water is quite limited in dry goods. Some of the expressions in the article have a strong emotional color, such as accusing the investor of “Gives the Finger” (vertical middle finger).

For the “precision entrants”, “GSX IP entrants” and “burst entrants”, we can review who we learned from the announcement at that time. Muddy water may need more strong evidence to achieve Own purpose.

Who did you learn from a week ago:

1. About Precise Joiners, Burst Joiners and Early Joiners in the report

With whom to learn to use the double teacher large class model for teaching. “Dual teacher” refers to the teaching team composed of the main lecturer and the tutor. The main teacher is responsible for teaching courses and preaching, and the tutor is responsible for daily service and answering questions. In order to ensure that the tutor pays attention to each student to enhance the interactive experience, in the regular live broadcast class, our self-developed live broadcast system will split the large class brought by a main teacher into small classes led by multiple tutors.

About 30 minutes before the start of each class, the tutor will open a small class interactive mode and accompany students by doing games, reviewing homework, and pre-class preparation. At the official start of the class, or after the lecturer enters the live broadcast room, the tutor can manually switch the live broadcast room from the small class mode to the large class mode led by the lecturer. If the tutor does not switch in time, the live broadcast system will automatically perform supplementary switching. The switching time is generally around the start time marked in the course schedule (different courses have a switching time difference of several seconds to avoid server congestion caused by simultaneous switching of all courses Happening).

K12 ’s course period is relatively fixed, and the course time of the same course is basically the same between different weeks and days. For example, the fourth grade spring math class starts at 14:00 on Saturday, then usually this time every week is the time of the fourth grade mathematics class.

During the process of switching from small class to large class, from the perspective of the big class, multiple Precise Joiners mentioned in the muddy water report will arrive at the same time in different lessons (such as the above example) Every Saturday at 14:00) Burst Joiners entered the live broadcast room at the same time, and the Early Joiners situation caused by the students arriving early in the class and interacting with the tutor.

Appendix 1 shows the relevant system settings. Among them, Figure 1 is a screenshot of the manual cut function of the tutor interface, Figure 2 is the source code of the automatic cut function; Figure 3 and Figure 4 are a randomly selected small class switch A screenshot of Daban ’s system log to show its IP migration process.

2. About GSX IP Joiners in the report

After using various methods to try to reproduce the degree of coincidence between the student and teacher IP mentioned in the report, we regret that we cannot reach the conclusion that the degree of coincidence is 28.2%. We recalculated the degree of coincidence between the student and teacher IP based on the full amount of regular-price lessons from January to March 2020 in the current database.

Usually in a home broadband, the user ’s IP address is provided by the broadband operator, and there is a probability that the same IP will be reused by different users. We believe that 0.78% of IP coincidence is within a reasonable range.

We provide the query statement of this data in Annex II, so that all parties can reuse the statement to verify the results.

Actually, if you see me here, do you have a feeling that your patience is gradually losing? This year, I have been shorted 7 times with whom I learned. This is just a few rounds of muddy water. I should have been nervous and serious. Acted as a noisy soap opera.

It ’s not true, and it ’s not true, time will naturally give the answer. In 2020, the economic situation at home and abroad is very grim. Everyone should seize the time to do business and business, and stay away from the capital market. Perhaps it is a kind of ultimate wisdom.