I think it would help your PR efforts to let people know that more often. People hear "we are <org_name>" and assume you're, you know, an organization. That comes with some amount of expected bug fixes, documentation, verifying results _before_ you release, etc.
I'm not really sure how much you gain by attracting tons of people to the discord if you finally release and everyone has unreasonable expectations due to the way you advertise the group as a whole.