A locked front door provides basic protection for a private domicile. Twitter is not private. A more apropos analogy to Twitter&#x27;s block functionality would be holding a meeting in the park and yelling at certain people to stop listening because you don&#x27;t like them being around. You can yell all you want but you can&#x27;t actually stop them from hearing you or listening if they&#x27;re interested, and it&#x27;s unreasonable to expect to be able to do so.