UPDATE: After 12 hours of post-bumping Community seems to have gone back into hibernation. Sorry for the noise(?).
I know that the Community "user" sometimes bumps posts that have sat unanswered for a while, to get them more attention.
However, over the ten hours or so, Community has been bumping posts on meta.scifi.stackexchange.com at the rate of about one per hour, which is far, far more often than I've ever seen before. At least one of them is a status-completed bug report from 2012 and the timeline views seem to suggest that some of them already had upvoted answers (though I might be misinterpreting it).