If you know Reddit, you know how karma works. If not, here is a short overview:
If someone likes you or what you do, they can give you Karma points. Each user can give each other user either 1, 0 or -1 Karma points. Once you give a Karma point to a user, they keep it – until you give the user a different amount of karma. The karma that you give today replaces the karma you gave yesterday. The idea is karma gives you a way to express your feelings about what a user does, builds and says. You can change your opinion anytime between good, neutral and bad. There is no way of knowing who gave you good or bad karma however. The list here contains only users that currently have a lot on the server.
So how does it work?
|/karma get [user]||Gives you your karma, or another user’s karma if you give a username|
|/karma +|0|- user||Give either +1, -1 or 0 karma to user “username”|
|/karma top|bottom||See the bottom or top ranked players on the server|