It was probably the wording used that chapped a few asses. I don't really care about the karma system personally. We are here to discuss things and share opinions.
If you share your view or opinion. Not everyone is going to agree with you or like you. I'd rather see someone voted negative and express their thoughts genuinely. Than pussyfoot around and be in-genuine so people like them.
I posted a topic about a Oculus rift sex game here. It slipped my mind that we had a general forum. I was dumbfounded about my rate down. Then I became aware and I deserved that down vote.