Bumping hot topics

I know this has been posted just two topics before this one, but it is exactly the point I am trying to make. I think that a very useful upgrade to the forums would be to bump the topics when someone replies to them. I am sure you see why it would be so important: I for one can see lots of new discussions being posted, and most of them have been already discussed to death. As a result, most topics don't get past 2 or 3 replies before being pushed on the second page and being forgotten, unless someone takes the time to search for them, but even then they remain invisible to most. There are many interesting discussions that have been left hanging, and I am sure that many of the newcomers (me included) would love to join them, without the fear of repeating themselves. I am telling this because I have been a faithful follower of this board since last summer (or earlier) even though I just subscribed a few weeks ago, and I know that part of this has been caused by the increased number of subscribers (yes, I take my share of responsibility!) I don't know if it is something that can be implemented within this forum, or how hard it can be, but if it were possible, it would make the forum much leaner and the discussions more interesting. Thank you for your efforts! Sincerely, NXW