For those that don't get how unwanted financial messages can be a problem, here's a thread from last year about blocking incoming transactions to UK bank accoun

For those that don't get how unwanted financial messages can be a problem, here's a thread from last year about blocking incoming transactions to UK bank accounts. https://www.reddit.com/r/UKPersonalFinance/comments/kkgrsj/can_you_block_someone_sending_you_money/ https://www.reddit.com/r/UKPersonalFinance/comments/kkgrsj/c... It's somewhat common in the UK for people to send each other a couple of pennies, along with a short message, via banking apps. Some banks will block senders on request. As banks have to perform KYC checks, it's also possible to report people for harassment to the police. I'm not sure how unregulated cryptocoins can do that. I'm sure you can tell a wallet to ignore any transactions from a specific address - but there's no way to prevent those transactions actually being committed to the chain.