I have 28 thumbs up because I'm the principal developer of EDuke32 and these are the EDuke32 forums in addition to the Duke4.net forums. You can say it's only because I'm an administrator but it's really because I gave people a place to talk about Duke3D related things and I gave them a lot to talk about with EDuke32. I don't claim to be the best administrator ever (I'm only human after all, and I'm definitely not impartial in regards to a lot of topics) but I try to do a good job.
I try to be fair to users, even when I disagree with their viewpoints, even though a forum like this is basically private property and as administrators we don't
have to do anything at all. There's just only so much crap I'm willing to put up with.
By the way, it wasn't me that downvoted the post this is a reply to.

As for the voting system in general, if it was possible I would have started everyone at 10 or 20 points to allow for some margin for error in regards to people downvoting them just to be malicious. Unfortunately, the software doesn't allow for that. Anyway, I mean it when I say that people who abuse the reputation system will be punished. I really want the reputation thing to work out because when used correctly it's a useful metric with which one can easily gauge the quality of a member's posts.