How about "A Perl Mall"?

Well, I like it, but a very similar suggestion that I favour over yours because of a certain exhotic vein is that of a bazaar directly following yours in the thread. Both terms have the con, though, of having a strong commercial bent in their common acceptations, while here we're not selling anything: people come here to find help kindly offered to them with free of charge, and other people give away help for nothing in change, but possibly some personal satisfaction.