I still don't really get how it works.
I've seen posters go from multiple blues to reds and the opposite. I've seen posters who've never moved. Then there's the ones constantly digging themselves a hole and of course, the usual group who just gets more and more reds.
I don't know if posts in the Off Topic area have any effect on skill, or if it's just reserved for the hockey talk, which might explain why I've never gotten a post judged one way or another since I mostly just lurk the hockey forums.
So I guess I'm just as neutral on the skill system as it's neutral on me.