I fully agree on the line, in general, being fuzzy. It's not here.
Multiple texts describe Binance helping Hamas circumvent money-laundering flags by moving small amounts, helping a Chicago-based trader hide his U.S. origin, et cetera.
If someone buys a bunch of lye, the line is blurry. If they walk in hitting a meth pipe, ask you in which aisle are the meth supplies, and when they hand you their credit card, you advise them to pay in cash so you don't have to draw up a receipt, the line isn't blurry so much as very far away.