I don't know Celio.
Being indifferent or ambivalent about things or people, doesn't go with a lot of people's personalities.
I find that people tend to be passionate about things -- one way or another.
It just so happens in MMA when you don't like one of the guys in the fight, you may just get an opportunity to see that guy get is A$$ handed to him - and there is often a feeling of satisfaction in seeing that. You are probably happy for the victor, but you're also pleased the other guy lost.
I wouldn't judge whether those feelings are right or wrong.
I don't mind Nate Marquardt so much... but Nate Diaz, on the other hand...