Yes. No bumping is allowed regardless of the type of thread. The rule could be a little more clear perhaps. That said I do see perhaps a need to allow "common" posts to be pushed back to the top if they have zero responses within some set time period like maybe 7 or 14 days. Posts with replies would not be eligible of course for bumping otherwise things could get hairy but for a zero response thread it probably does make some sense. I'll discuss this with my top brass here and see if there are any reasons brought forth why we should not tweak that rule.