suchmoon: Advertises for a site intended to help people's privacy when sending coins. Someone, unrelated to suchmoon, used this service to do something illegal.
Can you tell me 1 case of Bitcoin Mixers where it isn't used for Mix Scummed or Hacked Bitcoins/Altcoins but pure privacy? Let it be Hypothetical if you like.
Bitcoin is private enough already and no one IRL can trace your bitcoins unless you're stupid enough to moan about how many Bitcoins you own and prove to people around you.
Even if you disclose your bitcoin wallet address there's less than a 1% chance of them being able to trace everywhere those bitcoins went, It's hard enough already for Government Agencies to trace, what makes you think a normal Human without a warrant can do to trace someone's Bitcoins?