A bitcoin private key is just "KwTHJw865SLeTAjK7otYb5bL5mwutBb2vDxxF7kGf5XvY7QttnvM" after all.
A dollar in a bank account is similarly abstractable. Anyone equating crypto to speech is undermining actual privacy rights.
You _can_ transfer a cryptocurrency by sending its private key on an encrypted messaging app.
What happens if someone makes a mixer that operates over Signal messages? This is not a bad-faith argument: The entire CoinJoin protocol used to operate over IRC; before they developed their own communications system for increased efficiency.
Honestly, if someone just develops a mixer and publishes the code they’re probably fine. That’s speech. GitHub or a journal, it is protected.
Tornado’s developers didn’t do that. They made a token that with monetary value that they get paid; they hired people and had a website promoting the service; et cetera. If this were just a GitHub repo, yes, the comparison to speech would be apt. It’s not. And I’m none too thrilled about folks throwing actual free speech and privacy under the bus to defend crypto.
Both thought they were right and the evil people got what they deserved. The fact that you divide the tech world into evil cryptobros vs good citizens is telling.