1. I think that’s a great idea. If nothing else it should encourage people to engage more with the community.
2. I plan to mostly spend my time here, as this instance is focused on security and that’s where i want to spend my time. I may subscribe elsewhere but i plan for this to be home base.
3. I think it could be, if enough people use it and provide content. Content is king.
4. I really want this to work! I would love to see federated services be able to reach a decent level of adoption.