I wonder what is the time limit of how often can one ask a question on Math Stack Exchange?

I tried to ask a new question shortly after I posted one, and the Ask Question link always referred me back to the old question.

Sincere thanks!


1 Answer 1


There are several limits on the number of questions you can ask, the hard limits are 6 questions per day and 50 questions per month.

As a new user there are some additional rate limits to prevent abuse, any user below 125 reputation can only ask a question every 20 minutes. A high reputation user can post questions pretty quickly until they hit one of the rate limits I mentioned above.

In general, everything on SE sites is rate-limited in some way to prevent abuse. Even moderators writing moderator messages or suspending users are rate-limited, and as far as I know those limits also apply to SE employees using those tools.

  • $\begingroup$ "...there are some additional rate limits to prevent abuse, those are not documented exactly as far as I know." - security through obscurity? :) $\endgroup$ Apr 22, 2013 at 23:32
  • $\begingroup$ @J.M. They are actually documented now on MSO, though I'm not sure if that list is really complete. $\endgroup$
    – user9733
    Apr 23, 2013 at 6:10
  • 1
    $\begingroup$ Employees not including those who maintain the database and can actually screw with you through there, though. :-) $\endgroup$
    – Asaf Karagila Mod
    Apr 23, 2013 at 6:42

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