I have to admit I don't know exactly who wrote each and every module I use, and I'm very happy that this isn't (yet) a big enough problem to cause great concern and personal discomfort.
I'm just saying that if a critical component like DBI or LWP broke on RHEL/CentOS 5 tomorrow because someone wanted to use new and shiny features to golf the code down a bit, I think you'd see a sharp decline in the popularity of Perl.
Bug fixes are ofcourse a completely different subject. Anyone who writes production code that relies on a bug to function properly should have their keyboard privileges permanently revoked.
Time flies when you don't know what you're doing