I agree about the value of the site, or I wouldn't be here. There is at least a million hackers/sysadmins of whatever variety that sling Perl at least some of the time. This site is something like 120,000th most visited site in the world right now (and this is a big gain over what it was a few months ago; not sure where the spike originates though the historical traffic is pretty spiky overall). I've worked with a couple dozen Perl hackers in the last decade and only one of them is a current/active monk and many were unaware of the site's existence.
Update: HURRRR… meant to reply to Re^4: Is PerlMonks relevant for one's Perl marketability?