how about the people who choose to, do, and those who don't want to, don't
That doesn't work. It breaches the pooling agreement. Say you turn over your details and I don't. That enables Pirate to make a private payment to you, defrauding me out of the share of that payment that I was entitled to under the pooling agreement. (Remember, the original agreement was that payments on all of the debt would be made according to the rules of the pool.) If a pass through operator facilitates this, he's breached the agreement.
Perhaps operators can find some way to ensure this doesn't happen. But until they do, I don't think they can pass anyone's information on to Pirate.
What if Pirate has one-sidedly decided to
NOT pay any PPTs
Then under the pooling agreement you are entitled to nothing so no-one is defrauded if Hashking gives out some ones info
To be clear, I have no BTC in Hashkin's passthrough, but I do have BTC with BitcoinMax and we have the same problem there