Anything that helps avoid problems with <kbd>windows-forms</kbd> vs <kbd>winforms</kbd>, and the regular <kbd>plzsendtehcodez</kbd> etc... ;-p

Of course, for the first example, [tag aliasing][1] would be preferable. But the second is just noise and could be blocked.


  [1]: http://meta.stackoverflow.com/questions/2779/could-the-tagging-system-be-enhanced-to-support-tag-synonyms