This question already has an answer here:
- No Community ♦ bumping in Meta please? 3 answers
As most of us already know, questions that do not have accepted or upvoted answers (aka Unanswered questions) are being bumped to the front page by "dummy edit" made by the system account after some time, two months here on Meta.
It's good feature on the main Stack Overflow website, allowing fresh eyes to see the question and offer new insight, that even if will be too late for the OP can help other people with the same problem. Once such insight is upvoted, the question will rest peacefully down the stack.
However, here on Meta things are different, at least from my point on view. Questions here are often about change that just happened or user asking for instant support - in the future it won't be relevant anymore. Same with discussions: I don't see much point bringing old discussions back to the front, from what I see they exhaust themselves within few days maximum a week.
So in my opinion the auto bump feature can be turned off here on Meta - unless you think there's good reason to have it?