While that's true, as Perl 6 draws closer to an official release we are going to see more and more Perl 6 questions. And you have to admit that having Perl 5 and Perl 6 questions mixed in together could get confusing. And with a Perl 6 section even if someone posts in the wrong section it can be moved to the correct one.
When that starts to be a problem, a solution will be found. Currently I do not think such a section would be a good idea. It would not be lively enough.
Jenda Enoch was right!
Enjoy the last years of Rome.