I just noticed PunBB was ranked #8 on Sitescore. That's out of 15,240 tested websites! Feel free to go there and vote for PunBB.org. With your help, we should be able to make it into the top 5
Edit: I don't know why, but in order to vote for a site, I first have to click "Report" and then "Vote for this site" just below the visitor rating.