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and also might not show up on the items for others
That would address one of my concerns. We know there is an inclination to read and zap based on how many sats a post has earned. On the other hand, not showing them would effectively punish the OP's for receiving zaps from these opt-outers.
If a founder wanted to zap their own posts (in their own territory) to make them look more successful, there would be no disincentive, since they now hold onto all of those sats.
I'm on the fence about this proposal. I'd be very careful messing around with SN's special sauce though.