It takes 20 minutes for a new thread to drop off the front page in Bitcoin discussions.
Agreed. I think the time should be discussed very well base on the number of topics made (every second, minute, hour) which I don't really have an idea since I don't usually post there.
Perhaps see if Mods will lock the thread once the question or concern was adequately addressed? I think many crap threads are opened just to farm accounts, that and sheer laziness.
I support this idea. This is exactly the right thing to do so that new interesting topics will get the required attention to have a good discussion. It may come to a point where the OP would bump it for visibilty which is quiet off and usually done only in Martketplace.