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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?

share|improve this question
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. – Robert Harvey Jun 14 '13 at 20:06
@RobertHarvey: Not on Chem. (see update) – Manishearth Jun 14 '13 at 20:07
Since it's gone wild, you might have to use a tranquilizer dart. – Undo Jun 14 '13 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. – Richard J. Ross III Jun 14 '13 at 20:10
I fear the team lost control over that bot! :P – Shadow Wizard Jun 14 '13 at 20:16
@Undo: I can suspend it, but I'll get yelled at if I do it :P – Manishearth Jun 14 '13 at 20:18
@ShaWizDowArd they never had control. Control is an illusion, created by Community. The only one with control now is... Mr. Skeet! – Richard J. Ross III Jun 14 '13 at 20:29
@RichardJ.RossIII: Ha! How do we pray to the Skeet again? – Manishearth Jun 14 '13 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. – Richard J. Ross III Jun 14 '13 at 20:38
@Richard I think that just buying one of his books would suffice. ;) – Shadow Wizard Jun 14 '13 at 20:44
@ShaWizDowArd that's like paying a tithe or something, not prayer. – Richard J. Ross III Jun 14 '13 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 – Shadow Wizard Jun 14 '13 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. – Richard J. Ross III Jun 14 '13 at 21:00
@Sha Your Skeetage may vary. – Undo Jun 14 '13 at 21:05
up vote 14 down vote accepted

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 locked or closed).

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

share|improve this answer
Hmm, makes sense. – Manishearth Jun 15 '13 at 7:13
Are questions having an answer (or answers) scoring less than 0 bumped? – hims056 Apr 3 '14 at 9:21
@hims056 from own experience - no. – Shadow Wizard Aug 13 '14 at 15:02
I suggest linking to this answer from Community's profile, as is done for auto-deletion. This would prevent confusion here. – user259867 Mar 29 '15 at 6:40
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.) – Monica Cellio Jun 15 '15 at 17:20
You may also see this when an anonymous edit is applied, @monica – Shog9 Jun 15 '15 at 21:30

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