I don't think he's obsessed with the avatar, I think he's just trying to make a point in a civilized manner, which he has done here. He's presented his views, and has posted why his views are like that. I think the fact that the thread is about this should have nothing to do with judging his character.
I happen to somewhat agree as well. I don't think it's that bad. But if the women feel offended by it (which two have said they are), I'm sure that they just aren't trying to cause a scene, and they really are offended.
However, I'd also like to say this-
BlackDove currently has an avatar of an anime male that in which you can see his chest.
I am not offended.