I can't hate him, I can only feel sorry for him. but yeah he pretty much single handily ruined the second season of Minami-ke.
I can't for the life of me understand why they would insert such a horrible depressing character into a SoL comedy.
all I can imagine is that he was there as someone viewers could relate to, not to be confused with a self insert character, but a sad pathetic socially awkward creepy kill joy loser with no friends who people secretly suspect is a insane murder. maybe the creators were trying to let the viewers know how poorly we'd all fit into a moderately bright and cheerful lighthearted anime like that, though I'm sure many probably don't need to be reminded of our place...