An LLC will not protect your personal wealth from a criminal charge/investigation. Ask any lawyer.
Who said that it would? Nobody. That's a straw man argument. It protects my personal assets from
civil lawsuits and
business debts, which is the point. Also, before you ask "what possible lawsuits or debts", that's the point. I don't know. If I could predict the future then I wouldn't need to worry.
I don't operate 'in the dark'. I operate as a full liability man, standing on my own two feet. I, personally, have no use for "limited liability".
Then you have no business giving anyone advice on how to run a business. That's an unnecessary risk which is not the kind of thing an entrepreneur should be doing.
Also, I thought Bitcoin was about freedom. It doesn't make sense to me to intentionally enter unnecessary contracts with the state, tacit or intentional.
It's only unnecessary if I don't mind putting my personal assets at risk for lawsuits or debts, which I do.