In the discussions page, it would be nice to see for each forum, the threads changed since (# days) (in stead of the 4 newest threads).
This is a good idea. We are currently working on a few changes in the short-term on the discussions area. I will put this on the list to think about.
I actually think that when a thread is replied to, it should be percolated back to the top. So the uppermost thread is the one with the most recent message or reply, not the most recent first post.
also perhaps some way for the user to personalise the thread sorting to their liking? in case they like it the current way, or want to sort by author, or subject, etc.
I actually think that when a thread is replied to, it should be percolated back to the top
I quite agree - currently it is very difficult to keep track of who's replying to your threads - old threads that get replies just get lost.