The only thing I worry about is if a paid member is late to renew their membership lets say even just 1 day) - then if their account is removed from all the fellowships that they were in, they would have to go through the trouble of trying to get back into them all.

Not a big deal if you are in one or two fellowships......

Of course once a few weeks pass by, then that would be a good time to remove pawns. Maybe a script that can be ran every month or so to scan and remove pawns from fellowships would be good?