The general rule is no crossposting, but what other Stack Exchange sites like Math and Math Overflow approve this after seven days? Can we list them here?

I can't remember where, but I remember some other Meta post on some science Stack Exchange site discussing crossposting, and some users there approve.

2 Answers 2


This appears to have arisen in the context of this question being shopped around various Stack Exchange sites, including Mathematics and Philosophy.

Instead of trying to find a list of venues it might be possible to post a particular question to and stay technically within their rules, I think it'd be better to carefully look at what's on-topic, both in letter and spirit, on a particular site you are considering posting to. And not to keep trying to find new angles on a question that has basically been answered.

  • Out of curiosity, do you know why your Meta profile says that you've been a member for just 13 days even though you've been here far longer? (You're also the #1 ranked new user) [Same thing with your account on EL&U]
    – CDR
    Commented Jun 19, 2023 at 13:59
  • @CDR my account accidentally got wiped network-wide. For Money and StackOverflow they restored my old user id, for the other network sites I set up new profiles and they've reassociated my posts with them. Commented Jun 19, 2023 at 18:04
  • I see. Thanks for clearing it up!
    – CDR
    Commented Jun 19, 2023 at 18:30

Theoretical Computer Science Stack Exchange has a similar policy (cross-posts are allowed after 7 days); see this answer to their FAQ. Since it mentions 'other Stack Exchange sites', it doesn't seem to be a mutual agreement.

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