This rule has been officially adopted and will be added to the rules immediately and enforced for Season 9.
"Using tandem pitchers for the specific reason of telling the AI who you want to be the first pitcher out of the bullpen is perfectly fine. However, it is NOT ok to deceive the other owner to gain a platoon advantage. Starting Pitchers should have their target pitch count set to at least 50. If you choose to not to use a target pitch count, then the max pitch count should be set to at least 50. (exceptions may apply in extreme circumstances"