To the people who don't go full force faggot and blatantly say "JMAN SUCKS PINGAZHURHUR" and actually give a valid reason for their dislike, they don't want to cause tensions between each other.
Personally, if someone didn't go out being idiotic and immature insulting the other, and just acted mature, told them what's wrong, and work out something, I wouldn't have any tension at all towards them.
Unfortunately they still just go out and say people suck and start hate festing all the time.