Nick gives 0 fucks. He barely cares about rules when he has a fight planned. He sure as shit isn't gonna tell them his every move when he isn't negotiating a fight and is focusing on triathlons.
USADA's not trying hard enough. Follow Nick on Snapchat and you'll know exactly where he is at any given moment, it's not that difficult. Also, don't bother with the weed tests, he's positive.
From what I understand, he gets paid serious money just to shout out whatever weed products he uses on IG and the like. Talk about a good gig!
He obviously does what he wants when he wants, no matter how detrimental it is to his career, so this doesn't come as a shock to anyone. He just figures if and when he's gonna fight again, the UFC will take care of all that stuff for him...which they will !