This a widely misconcieved part of Nirvana, people thought he was the 'tortured artist' and tormented from birth. The truth is Kurt didn't want all the bullshit and said it many a time. In my opinion he has a great voice, if you listen on unplugged it does need all the editing you get today, you probably dislike the way he used it more. It was just unconventional to most.
Cobains guitar skills were never amazing, but he never boasted the fact and they still produced good songs despite incredible talent at the guitar.
It's piss poor to blame Nirvana for My Chemical Romance, if you happen to dislike one particular band and a very weak argument on your part merely because you believe Nirvana to be ''depressed''.
Yes the suicide got the band a huge amount of media attention, a larger following, an all together 'icon status' for the band and the label of 'overrated'.
Most of those kiRAB that go walking around got a copy of Nevermind burned by their friend, bought a t-shirt and started preaching about Kurt, yes they do need a wider range of musical knowledge before they start believing they were god fathers of grunge or whatever, but it doesn't neccesarily mean that they would stop liking Nirvana it would just change their perception of bloody genres.You're merely taking a cheap shot at a 'mainstream' band, if they hadn't been swept up by MTV and gained millions of fans but were 'underground' i doubt you'd be posting that oh-so original opinion.