The style of writing first
The dislike of some of my views second
Someone left a comment when he gave me bad rep. he said "the subject was posted some time ago" because he also posted the same thing after me in my thread so I identified him.
A childish comment was given me once in a bad rep and I recognized immediately who it was.
I dont think I could give a bad rep to anyone unless, they were being rude or downright obnoxius to myself or others. I'd never give a bad rep just because someones veiws or taste conflicted with mine.