I would participate in a collab and think it would be great fun. (but i'm quit busy this month.)
I don't have experience in online collab, but bands tend to get messy if to many people are Involved espacially if they don't know each other. On the other hand if there is a "professional" work atmosphere this is not a Problem.
I think we'd have to see how many People are even interested and how erveryone imagines this project.
I really have no idea, i'm bad at Social Media.
Those are all good points.