Everyone already has an account, so there's no friction to opening up issues, adding thumbs up to issues, using the discussion forum, etc. And while I think it'

Everyone already has an account, so there's no friction to opening up issues, adding thumbs up to issues, using the discussion forum, etc. And while I think it's pretty silly, a lot of people take "10k stars on GitHub" to be a positive signal, and you can only get there when you have 10k people willing to star on your platform.