My skin is capable of allowing Tom to get under it when he disses stuff I like, but it's not because I consider him a "friend," sheesh. It's of a piece with his style of humor, which is cranky and opinionated and kind of ruthless in its judgments. Consequently, when he digs into something I value, I may not be in a mood to see the humor in it and it may come across as mean, at least on first blush. But it's a feature. If he dissed everything in the way he disses stuff at his most charitable--some variation on "Well, it's just not for me"--he wouldn't be as abrasive, but he also wouldn't be as funny. For sensitive souls, it may take some getting used to.