I would be interested if you've heard of any prosecutions against individuals solely for using a mixer. In itself, I don't believe that it is illegal to use a mixer, but it is likely illegal to operate a mixer in most countries.

I've been convicted of money laundering in an European country for far less than using a mixer, so probably yes.

I merely sold 5000 euros worth of bitcoin to a Chinese OTC exchanger. There wasn't any real legal theory behind the charges. The court and prosecutor just assumed without any evidence that 1) the money must have been from criminal source and 2) I was using the Chinese exchanger specifically to obscure the source of those funds and not because he was someone I'd been working with since before cryptocurrencies existed.

I received a suspended sentence, wasn't worth appealing to recover the 5000 euros. Wasn't gonna get rid of the suspended sentence, there were counts I was totally guilty of.

Wow, that sounds shitty - sorry.