I'd add in "those who contribute toward a positive perception of the Perl community by being temperate, welcoming, patient, and helpful". You may not believe it, but it makes a huge difference to people who are not "in" one or another of the Perl groups.
in reply to What makes a contributor to Perl?
Other contributors include those who are graceful when in error. The phrase, "You're absolutely right! Thanks for the correction" makes a big difference too. Insisting that you are technically correct just makes you look like a weasel.