I wouldn't be surprised, although the chances of those people being close friends are very slim. Like, there might be people out there who I tolerate even though they secretly hate me, but chances are we don't talk or anything.
Hate's pretty strong, I think, and kind of implies an active passionate feeling. I don't hate anyone. I certainly dislike certain people for various reasons and with varying degrees. And I'm quite sure that there are people that dislike me. I'm not sure about people that hate me though.
Yeah, I dated a girl once, and everyone really hated her, so I had some of that hate come my way. Even after we broke up, some people didn't want to give me another chance as a friend, but my feelings towards them never changed, I never stopped caring for them.
I don't hate people that I know like me and vice versa. If I hate/dislike someone chances are they probably don't like me either; and I won't really like someone until I know they like me as well. Just don't like being one-sided