Closing old threads
It gets quite annoying to reply on a post and notice it's an old thread someone just resurrected. Other forums have the option to automatically close threads older than, lets say, 6 months old, or put a notice behind them recommending to open a new thread before answering that one... that would be nice. I've also seen forums where people that repeatedly reopen old threads are penalized.
Diabla, my Daemon; IPO-A1, RH-T A
Akela, my Direwolf; IPO-2, Kkl1