It’s worth also mentioning that as far as I am aware the OpenBSD folks also almost universally eat their own dog food. Most of not all the developers run -current. The bleeding edge. So they can find and fix any issues. I’m not sure how many of the other developers for FreeBSD or NetBSD do that.
I'm a netbsd developer and run netbsd. I think most active netbsd developers do.
a lot of former netbsd developers are still hanging around and contributing to pkgsrc while using it on OS X or linux, I don't think that's a thing to be ashamed of.