shamousey a dit :

If this were to become a feature, people would likely end up bumping every post they have as soon as they can, which'd just end up being an endless loop and would completely defeat the purpose of newer threads or replies to existing ones showing the threads up at the top of the list.

If you have something to add to the thread or continue the discussion then most of the time that's fine if it's been a while since the last post, but if no-one's posted then they probably don't have anything to say. I see several topics from 4-5 pages back get replies every day, I really don't think this is necessary.