uhg, okay:
People seem to base other member's legitimacy on their post count. But with points, given for helpful input, people can base other people's legitimacy on the helpfulness of their presence.
Say someone wants to know how to legally domesticate a sloth, and theres 50 replies all saying different things. The thread starter could find the people with the most positive points and try their methods first, then work their way down the list based on points.
Negative points will be awarded for spamming or unjustified shittalking and things of that nature.