I do this thing with comedians I don't find funny. Actually, it works with lots of things, not just comedians. What I'll do is not waste my time on them/it. That way I don't spend more time complaining about them/it to others. I can use all of that time to do other things like watch and do things I enjoy.
For example: I dislike Subway. So instead of eating at Subway, and telling people how much I dislike it, I'll eat at other restaurants that I actually do like, and I won't even tell people I don't like it unless they specifically ask.
I recommend this strategy.
EDIT: Although... I suppose that would decrease activity on the forum. So I guess we should talk about stuff we dislike, for the sake of activity. I'll try and remember to post a Fuck Subway thread when I get home from work.