Can you point out where in their contracts or privacy policy they have legally binding terms that irrevocably dismiss their right to give your messages to adver

Can you point out where in their contracts or privacy policy they have legally binding terms that irrevocably dismiss their right to give your messages to advertisers? If they have no intention to sell, then they have nothing to fear by putting it in writing with a appropriate liquidated damages clause. Otherwise it is quite suspicious why they reserve the right to do that in the contracts that they wrote.