ct690911: Yet many CC's [...] have pending lists of players waiting to join.
These aren't waiting lists but dead lists of people who once were invited or applied but never fixed the deal.
I have seen players both in a CC and on it's pending list.
I have seen players in CC1 and on CC2's pending list.
IMHO, these are just leftovers due to a gap or something in programming: Open invites or applications should be deleted by the program after some (short) time but they aren't. This is left to the owner but why should he do the game's work?
In short form, the pending lists don't mean a thing.