Not liking U2 seems to be the "hip thing" to do. , though I guess you have your reasons. Dont get me wrong, I'm into alot of different types of music (though mainly alt rock, rock, metal, like you) .... I dont really have enough free time to take an interest or discover any underground stuff, its mainly mainstream.
Personally I cant stand people who "hate mainstream" and only like bands that only they have heard of (and then stop liking them once they become popular). Arrogant pricks! ... I'm not saying your like this, I'm just ranting... Cant people just like music that sounds good to them? Who cares if the band is popular, or if the lead singer has an enormous ego and thinks he can save the world (Bono).