Gotta be careful because we don't want a reddit system where sock accounts can easily get posts hidden from view. The best social media is the place where good ideas are allowed to propagate virally.
The "careful" part is easily accomplished - make downvoting expensive. Sockpuppets have to pay to matter.
Ok but if upvoting is cheap they can just bury the post they want to hide. It's a pretty wicked problem but I agree, the money is going to be a big factor in mitigating the problem.
