I'm not going to oppose a release of more details here, or decide to release such details by myself, but since a lot of speculation could be drawn from what has been posted on the mailing list I'll summarise the current state of the discord so that such speculation isn't wildly off target:
There is currently ongoing, level-headed discussion with a rough consensus on the nature of contention and a direction the membership want to take to resolve it.
There is also a level of community engagement in maintaining and improving the space that I haven't seen in all my time as a member, and I personally think the future of Rlab is looking pretty good.
I personally think the discord server will become public, sooner or later, but we'll need to establish some form of spam prevention first. The Google group has a very basic form based (iirc) on the first message posted. And while discord has much better moderation tools someone (probably Vance) will need to volunteer to set them up and check they're working right. I'm sure there are web scrapers out there that would do something with a public discord invite and I think none of us want to deal with that right now.