All I'll say is I know an awful lot of his closest friends who helped him in his later years. He did awful things but he was a human as much as anyone else.
There's all sorts of stories of him doing morally questionable stuff. Jacques Rougeau for example has been quite vocal about his actions. There's worse stuff about him too reportedly. Edit: **** it, the thing I was thinking about in terms of worse stuff was him breaking some woman's leg for an insurance pay out. The video below (2:40 mark) shows him admitting it.Why is Dynamite Kid hated so much? What has he done?