One subtle problem that I think is potentially relevant is that Classic Perl's version number has to keep incrementing from 5.x; someone who isn't following Per

One subtle problem that I think is potentially relevant is that Classic Perl's version number has to keep incrementing from 5.x; someone who isn't following Perl development sees Perl using the same major version number as it was back in the mid-90s and assumes it's not being actively developed.