Or using a business which is required to report transactions, using a site which gets hacked, etc. I don’t think people sufficiently weight the risk of having a ledger which can’t be redacted – for example, I’d imagine there were a lot of people in Weimar Germany who did not think twice about donating to a synagogue or other organization which you would not want have wanted linked to your bank account a decade later.
Maybe you own a car. In 10 years time a green authoritarian communist group starts to suspect anybody who owned a car, you are sent to a re-education facility.
Maybe you are environmentally conscious and bought solar panels. In ten years time an anti environmental fascist group comes to power. You are disappeared.
You make some negative comments about AI at a dinner party. The host has an Alexa home automation system. In ten years time when government is run by AI. You are assigned to sewer cleaning duty, a tragic accident happens.
Summarizing: It's not a really strong argument.
However, if you are doing things that can get you arrested today; That's another story, then you should be paranoid and not use bitcoin. Maybe Monero instead? Although, that's not watertight either.
