Does anyone else think that Bob's seemingly intense disdain for Smith reeks of a kind of jealousy? I mean, in a lot of ways they're sort of similar: they're both overweight, very stereotypically geeky guys who love comics, movies, and games, both studied film in school, both are from the northeast, etc.
Except Smith (like him or not) is a successful movie director, has a large fan base (his speaking tours sell out fast), is married to an attractive woman and has a family, has the clout to get funding for just about any movie he wants to make (the fact that he made a movie about a guy getting turned into a Walrus is pretty strong evidence of that), and is generally what we'd consider successful, especially considering his first movie was shot in black and white on a budget of less than $30K. Bob has an internet video show and wrote a book on Super Mario 3.
Maybe it's just me, but the way he goes after Smith makes me feel like it's something a little more deep-seated than "I don't like his movies".