I like this idea too, I just think there might have to be restrictions put in, so the system can't be so easily abused.

I think you had to rep like 10 other members before you could rep the same person again, and because it's so easy to 'like' as many posts as you want, it wouldn't take long for some member to just start spamming likes in order to build up their rep points.

Sorry if that didn't make sense, I'm in kind of a rush.