I feel like stirring up the pot a bit this evening ....
If we are competing against an alliance and they say, "no thanks" to the coopertition bridge, or they make no attempt to do the coopertition bridge in a match with us, they will go on our blacklist for eliminations selection.
I am not saying it is not GP, as I believe saying, "no thanks" is a perfectly legitimate part of the game. However, putting someone on the blacklist for saying, "no thanks" is also a perfectly legitimate part of the game. The reason you would say no thanks is mainly due to strategic seeding to give you the best chance to make / win in the elimination rounds. Just know this: if you say, "no thanks" to us, then you won't be in the elimination rounds as our partner
Paul