On an adjacent topic, there has been some recent discussion around the Stack project about why #stack-collaborators is on Slack (the Haskell Foundation’s ‘free’ workspace there; ‘free’ = access to 90 days of history). It is before my time, but I think the reason for Stack was a desire to work collaboratively with the Haskell Foundation. There is a discussion here about the Haskell Foundation’s choice: Reconsider Slack for HF?.
If the centre-of-mass moves, I would expect the Stack project to follow it.