I agree with the others who have replied in that it's a bad idea to fork perlmonks off.
However I do think that there are aspects where perlmonks could be made easier accessible for new visitors, for example an option for simpler markup. I'd welcome it if somebody took it up to incorporate that into the existing monastery (I planned that at one point, but didn't have enough tuits :(, so the project is (indefinitely) stalled for now).
(Update) for example I would appreciate it if I could use POD markup here (with more features for links), because it makes paragraphs and code areas easier.