3 or 4 years ago, Gerard Way had one of the longest lines of rabid fans at comic-con, so I wouldn't call it "all of a sudden". I don't care much for them, but I've been hearing about them for years.
I absolutely love MCR. Always have, and I never kept it a secret. They have quite a strong emo following (which is kind of unfortunate that their fans are emos).
hmm didnt expect this much bad blood for that group here on deviantart. now, back in MY day they were mainstream rubbish like anything else on the radio. but that new song of theirs i can actually tolerate. i dunno, could just be me being hipster in some way
Devious Comments
But I do understand where your coming from
They did kind of sky rocket
Sounds like Terrorism to me.