Stolen directly from /pol/, they will eat ze bugs.
Imagine you're some bitcuck right now and the government sees you made 10k profit (every exchange now asks for full ID + proof, and they happily provide it)
My LCS doesn't even recognize who I am really, I don't know his name, he doesn't know mine, I just purchase thousands of dollars worth of stuff from him every month with no questions asked. You literally cannot even use a credit card anymore without it being tracked and possibly denied for large purchases.