What you're suggesting has been done elsewhere. It actually sounds like you're mixing aspects of the dark web and source boards all into one.
Just because a source pays a fee to open shop doesn't mean they're somehow G2G. They can scam and skip out just like sources that don't pay to play.
The big question is, where is the line drawn? If a source pays a fee to source here, are they entitled to some form of protection because they help pay the bills?
If not, why would they pay a fee to source here when they can pay the same fee elsewhere and get protection from the board owners?
It just doesn't work.