EasyEdward: Let's not forget [CC name] with 590 pending invites...
I verified that many of them are in this or in other CCs and are still on the "pending" list. I suppose that it doesn't help to decline the invitation.
Open invitations should be purged by the program after a certain time, one week, one month(?) and cleared from the "pendings" list. Apparently, this is not the case.
To me, it means that the program doesn't handle the pendings correctly, and I understand one owner's attitude "they messed it up, so why should I clear the list?"
AFAIK, it doesn't interfere with CC business exept that if may look bad for unknowing people.