http://forums.digitalpoint.com/faq.php?faq=vb3_user_profile#faq_vb3_public_profile scroll down to reputation, you will see how to do it
you can get the answer from http://forums.digitalpoint.com/showthread.php?t=173583 go to the setting, scroll down until the end and you will see your rep.
People are going to be sad one day when they wake up, and there is no reputation on this site (and all their existing "rep" is wiped out).
Sorry, I'm too late for the reply!! Well I assume green bars as a classification and authority kind of thing, so asked, but Shawn's reply made the whole thing looks mere. Thank you @ lifeplayer and nitinleew
I never really notice about the reps before. I normally look at the number of post and iTrader when I do any transaction with other people here.
upto 99 points you'll remain in 1 greeny. check the FAQ article for more details on your question http://forums.digitalpoint.com/showthread.php?t=173583