Ohloh doesn't recognize POD. This results in things like MakeMaker being dinged for having too few comments when in fact it's over 40% comments and POD.
If a mere 11% of the code is comments, Ohloh considers that to be "well-commented". In the Perl world that's low, 20-40% is more the CPAN average. Perl should be allowed to stand on it's own merits, so please pile onto the suggestion that Ohloh start tracking POD (be polite) and we can show the other languages how it's done.