Github does seem to have a marketplace that we could get into. Maybe something we can explore.
Sync is simple to sort out.
We were thinking of two kinds of projects 1. Private - for the internal dev teams to work on 2. Public - for external folks like end users to work with internal teams
Now I see another one which is CLIENTS only - for a restricted set of external users.
Thought: Make a free marketplace extension that allows a one-click "configure this user's subscriptions to different event types to make it into an issues-only user from that user's POV".
Both useful and if done right would hopefully be much more of a way to get people to engage with your product/brand than it would be "enabling a competitor" (I think ... or at least: I'm not trying to convince you to do something against your own interests for my own gain here, but that does not at all mean I'm not completely wrong ;)