Unless you technically enforce the block, there is nothing stopping a bad rep from doing it for a bribe, or being fooled. If you technically enforce the block,

Unless you technically enforce the block, there is nothing stopping a bad rep from doing it for a bribe, or being fooled. If you technically enforce the block, you now store more dangerous data with the telco that they shouldn't be holding at all for any reason. I have a few friends in the esports field that deal with some of these issues - one had someone physically show up to a mobile store with two fakes including most watermarks in the correct name to get a SIM swap attack completed (to only shitpost on Twitter, mind you, not to steal crypto or anything)