Its just some numbers that get handed out by the user base. If you like or disklike a post you can click add/subtract to increase or decrease these numbers. When used they help people determine the general worth of a person in the forums. Like does it look like this guy knows what he is talking about or is this guy a poser that always posts misinformation.

My hydroponics experiment

You ever notice how hard it is to lip read cartoon characters?
"Crazy is what the sane call Delta Flyer"