There's quite some discussion about Community ♦ bumping. It's purpose is to get a question more attention/responses/answers.
I think that on Meta it's extremely rare for a posted question not to get any attention/repies/answers. I see Community ♦ only bumping up old, already talked to death, no longer relevant, or no one cares anymore kind of topics. Perhaps I don't spend enough time on Meta, but I've yet to see a good bump.
Should Community ♦ bumping be halted for Meta.StackOverflow?
Related : Disabling this feature was also mentioned in this post.