I think for a lot of people, there simply isn't much need. A lot of folks just want to tweak something minor in a script or two they downloaded for example, and have no aspirations to become Perl gurus at any point. Assuming most saints, if they're not experts, at least have picked up a lot of stuff just by participating on PerlMonks if not in any other way, we have several hundred active members at the site who are at least moderately equipped to contribute meaningfully.
That's quite a good ratio, if you ask me. Indeed, PerlMonks is really the only webbased forum I have come across with such a concentration of expertise.
Makeshifts last the longest.