"An honest mixer"

Surely an oxymoron.
Can't think of any reason other than illegal that would require coins to be mixed. But am prepared to be educated otherwise.
I bought some silver with bitcoin once. Absolutely nothing illegal about the deal but I mixed it. I just wanted to preserve my privacy. Who knows what sort of crazy shit the government will come up with some day. Better to be safe than sorry.
That's right. Don't make the mistake of falling into the "I have nothing to hide" category and slowly allowing your privacy to be stripped away.