I used to post on a forum where you can double-click on the button to left of the thread's title, and then it gets marked as read. I like this better than clicking "mark topics read" (which would mark all of the threads as read), because sometimes I want to leave some of the threads that I want to read later, unread.
Or I think this is even better, the ability to ignore a thread. It would make it easier to organize what I want to read, and keep the subforum clean. Then the "new" button on the front would only get triggered when the threads that I want to read is updated, or there are new threads... but not by those threads that I don't want to read.
For example: I like some of the threads in "Lounge"... but my time is wasted when I see the button change to "new", and I find out that it's just music related stuff (I'm deaf, why would I care?), word association stuff, weather, etc. I mark these topics unread, then it repeats every time someone posts something new in these threads (but not in other threads that I'm interested in), and so on.
I don't wanna be wasting my time with that. I don't want to ignore the Lounge, because sometimes there are good threads. I only have so much time to read stuff, and I only want to spend it on good stuff.