Reputation is a horrid idea, but a thanks system can be implemented. It holds no real bearing, just that it shows someone liked your post and that you don't have to earn anything for it, just to show that people liked your post, and since it holds no prestige it can be just for fun. There is also the fact that people can take away the thanks on their own.
Its a little like rep, just without the creation of a big head, and just knowing that people like your posts, and it doesnt make you any better then anyone.
Feel free to say that i am retarded.
+0, but thank you (eh? :D )