I’ve been opting out of every single one, but some companies are assholes and make you send it in through a written letter (Meta) or worse, automatically accept it if you’ve even just used the app/site/product after they send an email to you regarding changes. The fact that massive corporations also say all matters must be resolved in small claims court and with mandatory arbitration with the company’s arbitrator is incredibly illegal sounding. Fuck you AT&T. They were the company who fought for revoking arbitration rights in contracts. The Supreme Court decided it was legal.