I think whater is replied to gets bumped to the top of the list, regardless of when you last posted in that thread. There is a Vancouver Canucks thread that keeps getting posted in, but which I hadn't posted in in over 5 months that was at the top of my list. It's a good idea though, in the off chance that you posted a tech support question in say "general hardware", and someone finally answered the question, but bad idea for all these perpetual threads.