On Chemistry.SE:

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These are all Community ♦ bumps, separated by exactly one hour (They occur on hour:38:16 UTC). Could the bot be sedated please? We're a 4-questions-per-day site; a bump an hour is not good for business.

We used to have one bump per day. This is evident if you scroll down on the homepage and check the timestamps (screenshot).

Apparently the number of questions bumped per hour is a configuration value. Maybe this got tweaked?

  • FWIW, one question per hour is exactly the pace that the community user is designed to do, so it's unlikely that it changed recently.
    – user102937
    Commented Jun 14, 2013 at 20:06
  • @RobertHarvey: Not on Chem. (see update) Commented Jun 14, 2013 at 20:07
  • 2
    Since it's gone wild, you might have to use a tranquilizer dart.
    – Undo
    Commented Jun 14, 2013 at 20:09
  • @Manishearth ah, after checking the timestamps it does appear that you are correct. You should update your screenshots with what it shows before Community went on a spree. Commented Jun 14, 2013 at 20:10
  • 1
    I fear the team lost control over that bot! :P Commented Jun 14, 2013 at 20:16
  • @Undo: I can suspend it, but I'll get yelled at if I do it :P Commented Jun 14, 2013 at 20:18
  • @ShaWizDowArd they never had control. Control is an illusion, created by Community. The only one with control now is... Mr. Skeet! Commented Jun 14, 2013 at 20:29
  • @RichardJ.RossIII: Ha! How do we pray to the Skeet again? Commented Jun 14, 2013 at 20:36
  • @Manishearth first, you chant his name 3 times... then, you spin around twice, light 5 candles, do the skeet-u-flect, and drink a bowl of milk, because that sounds like fun. There, you've successfully prayed to our god, Mr. Skeet. Commented Jun 14, 2013 at 20:38
  • 1
    @Richard I think that just buying one of his books would suffice. ;) Commented Jun 14, 2013 at 20:44
  • 2
    @ShaWizDowArd that's like paying a tithe or something, not prayer. Commented Jun 14, 2013 at 20:55
  • @Richard OK, but doing what you said before while holding a book of Him would greatly increase chances for response, right? :D Commented Jun 14, 2013 at 20:57
  • @ShaWizDowArd Our god does not offer guarantees of any kind on his prayers, and is not responsible for any jobs lost due to performing the prayer rituals at work. Commented Jun 14, 2013 at 21:00
  • 4
    @Sha Your Skeetage may vary.
    – Undo
    Commented Jun 14, 2013 at 21:05

1 Answer 1


No change to the configuration value so far as I can see - it's max 1 per hour (which is what you're observing).

Note that the posts eligible for bumping are those scoring >= 0 that have gone at least 30 days with no activity, have at least one non-deleted answer scoring 0 and none scoring more than that, and no accepted answer (also, they can't be deleted or closed).

There's a pretty reasonable chance that you just didn't have very many questions meeting those criteria until today...

  • 1
    Are questions having an answer (or answers) scoring less than 0 bumped?
    – Himanshu
    Commented Apr 3, 2014 at 9:21
  • 1
    @hims056 from own experience - no. Commented Aug 13, 2014 at 15:02
  • 1
    I suggest linking to this answer from Community's profile, as is done for auto-deletion. This would prevent confusion here.
    – user259867
    Commented Mar 29, 2015 at 6:40
  • 3
    This suggests that questions with no answers aren't bumped (or weren't two years ago when this was written). I'm pretty sure I've seen Community bumps of truly-unanswered questions. Is this out of date or am I seeing something else at play? (I'm pretty sure I've seen this on sites I moderate, so I don't mean questions bumped by deleted spam.) Commented Jun 15, 2015 at 17:20
  • You may also see this when an anonymous edit is applied, @monica
    – Shog9
    Commented Jun 15, 2015 at 21:30
  • @Shog9 Is this answer still current? I can't puzzle out why this one got bumped.
    – E.P.
    Commented Sep 14, 2016 at 11:14
  • Was last bumped on the 5th... After that, the answer got two upvotes, @E.P., making it ineligible for further bumping. IOW, the system worked. See: meta.physics.stackexchange.com/posts/7513/timeline
    – Shog9
    Commented Sep 14, 2016 at 17:29
  • @Shog9 Gah! sorry, I got lost in the timelines and assumed that any upvotes on the answer would show on the thread timeline (which I think used to be the case?). Sorry to bother you, and thanks for the clarification.
    – E.P.
    Commented Sep 14, 2016 at 18:13
  • Yeah, the old timeline rolled question and answer events into one lump, which was nice on occasion but usually just confusing as hell.
    – Shog9
    Commented Sep 14, 2016 at 18:14
  • @Shog9 locked question seem to be able to be bumped, this bug; meta.stackexchange.com/questions/210458/… just re-appeared
    – yagmoth555
    Commented Mar 31, 2017 at 2:55
  • Funny thing... I have no idea why I put "locked" in there to begin with, @yagmoth555 - there's no mention of it in the code, nor - so far as I can see - has there ever been.
    – Shog9
    Commented Mar 31, 2017 at 3:26
  • @Shog9 hehe, well the word lock kinda maked sense for me, as if locked, the community can't upvote or downvote (or add an answer), no way to stop the bump :) (from a community's view)
    – yagmoth555
    Commented Mar 31, 2017 at 3:35
  • 1
    oh, it makes sense, @yagmoth555 - except that I can't find nor think of a single example where locking bump-eligible questions makes sense to begin with. See my answer on that bug report you linked.
    – Shog9
    Commented Mar 31, 2017 at 3:49

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