1. U.S. citizens and residents are subject to U.S. income tax on worldwide income, while nonresidents are subject to U.S. income tax on U.S. source income and income effectively connected with a U.S. trade or business.
What is this guy's motivation? Open border activist? Personal skeletons? Constitutional crusader? Anybody’s guess.
Maybe somebody told him that with 20 referrals to secondary you get a free t-shirt.