[Felix The Cat]

Well go into a bit more detail about it, give some examples. Most of the time you'll find they have reputation because they've contributed something or someone likes them, I am yet to find an example of a bad reputation. Although I do think bad reputation should be taken seriously.

Says you. -___-

How do people even rep others O.o
+ you may not have much posts, but your awesome

Go to the user's profile (click username) and click 'rate', pretty straight forward...