Everybody should contribute to clean up StackOverflow.

SO is intended to be a top-quality Q&A site, meant not just for the OP, but for posterity. Thanks to search engines, questions and answers become authoritative for the whole Internet. --Paul Draper

TODO by humans:

• disambiguate the 18,700+ duplicate titles
• fix the uneditable titles (1,299 titles with length < 15)
• fix the uneditable titles (containing "help", "problem", "question", "doubt", …)
• fix the uneditable messages (containing "mydomain.com", "domain.com", "mysite.com", "site.com", "abc.com", "xyz.com", …)
• fix the uneditable messages with link shorteners (5,032 url:goo.gl, 4,038 url:bit.ly, 2,045 url:tinyurl.com, 2,016 url:cl.ly, …)
• remove the dead images/codes (9,569 url:imageshack, 2,844 url:pastie.org, 2,351 url:photobucket, 438 url:skitch.com, 217 url:rapidshare.com, 216 url:paste.ofcode.org, 78 expirebox.com, 22 url:omploader, …)
• fix the broken links in messages, broken links to connect.microsoft.com, …
• rollback the 220+ solved, resolved, fixed, answered titles (meta, alternative query)
• correct the spelling in titles
• correct the 6,600+ "thanks in advanced" and 1,100+ "thanks in advice", …