i think this reputation thing is obsolete. it doesn’t seem to have any effect. everyone has 4 stars. well, except for digibob …
i rather suggest that you remove this rep stuff and instead introduce a “thank you” button for every post. i’ve seen it on a dvd forum recently. eg whenever someone informs the others about a new low price of a bluray disc, you can simply press the “thank you” button. additional benefit: that way the thread doesn’t get cluttered with useless thank you posts.
what does this have to do with rep? well, there are several people who really make quality posts like eg GUNSL1NG3R. in the past days i’d have pressed the thank you button several times. the rep should be calculated from those quality posts and not by up/downvoting of forum users.
downvoting is a bad idea in general. if someone gets downvoted, then that someone probably behaved in a not so friendly way. it’s the job of the admins to deal with those people, it shouldn’t involve the users.
just an idea