One of our new members said today "Actually, thanks for your help but I have an answer now. Alas stackexchange won't let me post it for another 4 hours!"

What is he talking about and why can't he post? I don't remember encountering anything like that, so I presume it's a new anti-spam measure or similar. I'd like to know the specifics of what this measure is, so I can help people when they run into it.

  • A SE limitation for new users with less than 100 rep.
    – Mapperz Mod
    Commented Oct 5, 2011 at 18:53

1 Answer 1


New users who have less than 100 reputation cannot post answers to their own questions within the first eight hours of posting said question. This was implemented back in April 2011.

This was devised because the vast majority of new user self-answers were not answers. Rather, they were message-board style responses from those unfamiliar with the difference between a Q&A site and a forum. As such, this stops them from doing so, and hopefully guides them towards using comments where it would be appropriate.

It does bar the occasional legitimate self-answer, but the occurrence is generally infrequent.

  • 5
    Thanks for the concise and official answer.
    – Mapperz Mod
    Commented Oct 5, 2011 at 18:54

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