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While reviewing questions (request-close queue), I came across this question: Can someone help me solve this in c language?

I didn't think the question should be closed, yet, before clicking "do not close" I went to edit this question to remove the deprecated tag homework. I removed this tag, put a description of the edit and clicked "Save". At this point I got the message about "Please do not use word 'problem' in the question title". Fair enough, I removed that word. However... How did this word end up in the title in the first place? The question is by a new user (rep of 1); if I can't post a question with word 'problem' in the title with my 12K+ rep, then a new user definitely shouldn't be able to.

Was this some sort of a bug?

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1 Answer 1

up vote 8 down vote accepted

The title filter for "problem" is a relatively recent development. You just found a question that was posted before it was enabled.

To be specific, the question was posted in May 2011, and the filter was implemented around September 2011. I don't know the exact date, that's just an estimate based on when "why can't we use the word 'problem' in titles" posts started showing up on Meta.

EDIT:
The slightly less ridiculous metric of searching SO for questions with "problem" in the title supports the Sep. 2011 guess. There are a few dozen such questions on SO with later "asked on" dates, but they're all either

  • migrations that started on sites without the title filter; or
  • formatting hacks of varying cleverness (zero-width spaces, anyone?)
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