> Although the FBI says Lin tried to swap his bitcoins for harder-to-trace monero before cashing out the cryptocurrency at an exchange, the criminal complaint points to timing and amount correlations that nonetheless allowed the FBI to follow his funds to a crypto exchange where he allegedly liquidated the dirty funds. That exchange account, too, was registered in Lin's real name, according to the DOJ.

almost, but he did it backwards.

always swap to monero with new clean funds straight from an exchange, let it sit in Monero for a week, and then swap to new unseen addresses, in several different amounts than you initially sent. This thwarts the timing attacks.

additionally, either access the nodes you are using via TOR, or only access nodes with Onion addresses

use the funds in the previously unseen addresses to buy goods and services such as your domain names and other things

just completely segregate them in their own subnet of addresses unlinked from anything besides the swap/mixer

everyone has nearly infinite addresses on every blockchain, there's no reason not to do this, there's no rush and transaction fees have dropped as block space has improved