Is there a difference in burnout-rate between the new school of Open Sourcers and the old school of Free Software people?
I feel like the stories of people quitting, either due to the insane workload or because of the abusive "community", are mostly people who publicly hack on stuff that is on GitHub.
The old folks who quietly drop their code in an SVN repo only the distributors know how to find seem fine.
Obviously, I have no data on that, but to me it seems the whole "social coding" thing on GitHub ... sucks for the people who do the actual work.