I really didn't want to get into this :P
but yeah, I've read Vinnie's flames before, and he is the most obvious one which comes to mind.
But Mike did alienate quite a few people (including myself for a while) with the G2 protocol, just because he took it upon himself to do it. And I do understand that he did it because he figured (probably correctly) that it would be almost impossible to get done if he needed to get a consensus with all the other big names--but it still annoyed me

I think he also gets a lot of bad rep because of some of the Shareaza zealots who don't know what they're talking about, but that isn't his fault anyway.