The Slashdot rating system is actually pretty nice. But in lieu of a rating system, it would be nice to be able to add obnoxious or boring posters to a personal kill list, thereby filtering them out for that one user. Personally, I prefer such a system to a ratings system because it doesn't run the risk of imposing the majority's tastes on individual users.
BTW, I'm very impressed with WWWThreads so far. The only other web-based BBS system I've seen that is on a comparable level is Discus, which is sadly no longer free.
