You can't not accept it. When you send crypto to someone, it becomes a permanent part of the ledger. There is no way to prevent this. Even if they tried to make it so there needs to be a record of the accepting account saying "this is ok", this would be easily spoofable, and would double the size of the ledger and the required energy to maintain the ledger.
You can't not accept it. When you send crypto to someone, it becomes a permanent part of the ledger. There is no way to prevent this. Even if they tried to make it so there needs to be a record of the accepting account saying "this is ok", this would be easily spoofable, and would double the size of the ledger and the required energy to maintain the ledger.
This isn't necessarily true; it could be done using cryptographic signatures just like sending is, which would preclude the possibility of spoofing.
True.