@Kelsey,
Uhh, it doesn't matter if Bob only did 'one' album, he's been there since Life On The Murder Scene. And yeah I think we all have a right to freak out considering Matt didn't put effort into the band, while Bob put his soul into it. Remember Frank saying 'If there's a God, I thank him everyday for bringing us Bob.'
Therefore, Bob was a very huge part of the group. There really wasn't anyone like him. He was funny, sweet, and well..he hated cameras. It's not the fact that he left, cause maybe it was his own choice, it's the wondering why our hero left? He truly will not be the same without him, and for you to say it's not a big deal, that's pretty shitty.
And yeah, we all realize MCR is growing and having families, but that only proves they're only going to get more busy, and chances they're gonna wanna spend their time with their families, then touring, which is completely understandable.
But I bet if Frank left, or Gerard left, then you would consider it a 'big' deal right? So why should Bob be any different???