As we all know the word "help" is blacklisted from questions title.
However today I encountered this question on Stack Overflow and when submitting my edit (not related to the title) was amazed to see it blocked. Putting my amazement aside I removed it manually from the title and the edit went through.
Here is the original revision: http://stackoverflow.com/revisions/12881321/1
Is there something we don't know about the title blacklisted words?