https://www.klgates.com/CFTC-and-SEC-Perspectives-on-Cryptoc...
[0]: Article I, Section 9 <https://en.wikisource.org/wiki/Constitution_of_the_United_St...>
Importantly, with agency rules, courts can and have looked at the "intent of the law" authorizing the agency's rules to uphold criminal convictions under newer agency rules that were technically within the scope of the rules at the time the acts were committed.
This happens all the time in the tax world; see for example the Bermudan tax loss harvesting scheme that got a lot of people sent to prison even though the schemes were technically within the rules at the time accounting firms started selling them to clients.
Well, yes. That's the Howey test. It's pretty simple. A lot of crypto issuers liked to think it didn't apply to them, but the SEC has been saying consistently that it does. There's argument over whether crypto brokers, exchanges, or miners are subject to regulation. But anybody who created and issued a cryptocurrency is clearly making a public offering of a security.
The crypto community got away with a lot during the "line goes up" phase, because the SEC usually acts only when investors lose money. After a 2 trillion US dollar loss in market cap, that phase is over. There will be more complaints and more enforcement actions.
I'm cracking up over here. Are you actually being serious?
The IRS has been giving tax guidance on crypto for years; any US person in crypto with half a brain has been following it.