Doug, if you do, I hope there's a similar indicator. rep is not perfect barometer, but I find very useful. I follow a lot of threads, and I can usually count on high rep/post ratio members to be either informative or entertaining.
Perhaps that indicator that you mention helps you in filtering posts out quickly, but such tool cuts both ways. That indicator might facilitate screening out (discrimination against) very sound post(ers). People get points for al sorts of reasons so the indicator you mention is not a good gauge of anything, in particular.
My preference is to evaluate every single post on its own merits.
Great advantage of anonymity of posters on a internet forum is that a poster, when arguing, can not lean back on usual crutches that some privileged people lean back on in physical reality. There are no levels of authority, there is no skin color, no ethnicity, no gender, no social status, no one is taller or better looking or with a deeper voice than the rest. All these attributes are often used as quite effective communication tools that work wonders for people that have these tools. Possession of these tools gives them an unfair advantage over others in a single discussion. Hence introducing attributes to socially differentiate posters on an anonymous forum carries a risk of facilitating unfair discrimination.
If there is nothing people can lean on when making arguments, then they only have their wits, clarity and coherence as a tool. A tool that gets used most often becomes shiny and sharpened.
On the counter side, I do like reputation points system. I find it fun and I think it adds value in some ways. The rules are not so obvious, people need to try to start threads to figure stuff out about the system. It is like a social game and games are so much fun.
The system also helps to encourage desired behaviors (majority rule). For me personally the best bit about the points is that most people are happy to receive points, so why take that away from them. Perhaps getting points on internet forum is not much, but any micro happiness distribution system deserves a bit of thought before being axed or changed.
Perhaps if the system stays but the bars were made invisible to all but the poster, or visible intermittently, or visible selectively, or only after reaching certain threshold, etc etc. based on some clever rules, we may get even more fun.