First, I really tried to reread all 69 topic, but it's just too much. If it was before, sorry, my bad.
I thought about 3 player game, everybody against everybody (there can be the left/right attack or it can be changed with a counter). The winner will have 3x as.
I don't know if diplomacy can be allowed (so deny the message sending or not), but the 'no' will be better for the assiduitate, calm play. The time can be doubled for the harder decisions. I've read on the 2v2 that too much can crash the server, so it can be just only 1 or 2 game at the same time.