I'm bumping this to relate recent experience.

I'm in 4 Rewards Network programs. Recently, I noticed that my usual three participating Seattle joints (Islander, Chinoise and 35th Street Bistro) are eligible in the other 3 programs, but no longer with AS. Confirmed by RN via email that this is not a "glitch" - they are all no longer AS-eligible. Owner of one told me that he complained to RN about all that cash drain to Miami, and was told "We can drop a partner to help you out." The decision was unilaterally made thereafter by Rewards Network. Guess which partner is likeliest to continue taking a disproportionate hit in the Northwest?