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What scripts (e.g. the serial-voting script) run at 3:00 UTC, as opposed to once every minute, few minutes, or 6 to 8 weeks?
This question was inspired by a specific thing I encountered: seven posts that I edited were removed at exactly 3:00 UTC, lowering my reputation by 14. While I did ask this question to figure out why that happened, it is not about that problem and only that problem, so please answer accordingly.
This is probably not a complete list, but here are some of the things:
All tag-related processes. This includes recalculating tag scores, destroying tags that are abandoned, and awarding new tag badges.
Clean-up of low-quality and abandoned questions. See what qualifies for automatic deletion.
Automated reversals of voting fraud (serial voting).
Expiration of old close and reopen votes on questions.
