To be a bit controversial here. Has anyone considered that if contributing by e-mail is a barrier to new developers, it might be a healthy one?
I agree that more documentation is good, but even I as a kid could figure out how to use e-mail and I don't buy that new developers can't figure out the e-mail based workflow.. they're really smart you know.
I think it is way more problematic that most projects are now locked up in a silo, where you can't contribute without an account.
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