Not sure if that's a bug, or a feature... Seems to me that if you don't respond to a notification of a new post to a watched thread, you stop getting the notifications. Can't say if it's deliberate, a side-effect, or just a plain bug, but I have noticed that threads I used to watch, but then started ignoring the notifications for, eventually stop telling me about new activity on 'em, regardless of whether I specifically "unwatch" them. One example, the "count to (whatever the numebr is now)" thread in F&G - I posted to it for a while, so it put it in "watch mode" for me, but a few days after the last time I posted to it (and didn't bother clicking to go to it when notifications about new posts to it came in) I stopped getting notifications without deliberately turning them off. (Which is fine with me, but kinda puzzling when you notice that a thread that was spewing "somebody posted" notices at you just stops for no obvious reason)