The user robortpeter managed to spam our community with four questions within twenty minutes. Each question was heavily down-voted.

To block spam like this, my feature request is to block any user who asks several questions in a row where each one gets heavily down-voted. As an example algorithm: If a user asked two questions within the last hour with a total vote count of less than -6 points, then apply a block for five hours.

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This is called "question banning", and already exists. The exact criteria for when somebody gets banned isn't public, but when they try to post they'll get the error:

  • Sorry, we are no longer accepting questions from this account. See http://goo.gl/C1Kwu to learn more.

You can read all about it at that link; it goes to an FAQ post on the main meta

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  • Is it on for U&L? – user11976 Oct 22 '12 at 22:20
  • @YannisRizos I thought it was on everywhere, but apparently not. We can get it turned on if we start to have a spam problem – Michael Mrozek Oct 22 '12 at 23:46
  • It's a per site feature, and it's off by default. – user11976 Oct 22 '12 at 23:46
  • "users who barely even explain what it is they are trying to do" - sounds very interesting. Is there any site where this is turned on? – Nils Oct 26 '12 at 20:14
  • @Nils At least SO and Programmers; I'm not sure about the others. If you check MSO you can find people asking about it (although a ton of those posts get deleted since they're all duplicates) – Michael Mrozek Oct 26 '12 at 20:58
  • Nevertheless I think it is a bit extreme. Especially the IP-bound-part. Who does not use NAT at bigger companies or whose provider does not use DHCP with a limited number of IPs? Is there nothing softer, like "if banning were active - your question/answer would be banned"? – Nils Oct 27 '12 at 19:57

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