You can give someone a point of reputation via the little scales in the upper right hand corner of their post. It is like thanks, except you can only give it to the person once.
I haven't paid much attention to the reputation thing (I thought it didn't do anything), but I notice thanks. It's a good, cheap way to pay for free things and show gratitude for positive contributions. I hope it is not completely meaningless, because llamabeast deserves a fair bit of gratitude and positive feedback for all that he has done for this community.
Two penguins for llamabeast!

