To see if your approve to a certain post, or disagree.
Im not sure that its supposed to be abused because you are a bitter person who likes no one
Yeah, see thats the problem with the rep system. People will red rep you just because they don't like you or to be assholes. My rep was strong but I made some kind of rant when I was drunk, and now look what I got.
Pisses me off when people red rep me while agreeing with my post or when a fellow poster in the red attempts to give me a red rep and leaves a smart ass comment, not realizing that it does nothing to my rep.