I switched over to YNH from a self-rolled stack a few months ago. I've sent the odd patch (dovecot configs, a couple of apps) which tend to be accepted. Anyone who is bored of the rugged individualism of self hosting might find some welcome respite in the YNH community. By focusing on stuff other than "configure the email server" people can do more valuable stuff.

In my case, that means working on a signup form and invite-a-friend functionality.