Recently, Australian software company Atlassian announced that BitBucket (formerly hg.io) will stop on Mercurial Support and will remove all source code for the software managed by Mercurial on the platform. This has forced everyone to ask another question: In the 21st century, is the website closure the biggest enemy of human knowledge preservation?

The answer is yes.

For Ai Fan, BitBucket’s support for Mercurial’s support will have a certain impact – since 2010, Ai Fan’s main source code has been hosted on BitBucket. Although technically, Fan Faner can (and will soon) set up his own Mercurial server, the impact of such decisions is far more than just a company that loves Fan, or that some individuals and groups have an impact.

Can the community use Mercurial DVCS projects, such as PyPy, etc., can you find alternatives? Will some personally maintained projects and code snippets be lost? Even if most people eventually find an alternative, those who can’t find an alternative, or those that are considered “not important”, will disappear forever on the Internet. If a programmer has passed away, the data will disappear forever – this may be his contribution to the world. Moreover, it must happen that links to BitBucket in a large number of articles, blogs, and books will be completely invalid.

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