I’m not a US resident, but I bought most things I own in the US. I have a freight-forward service in FL which I’ve been using for 10 years or more. Not being a US resident has never been an issue. International credit card used to be a problem sometimes but not anymore. I’ve won contests in YouTube and other sites (3 or 4 times), and my FL shipping address was never an issue. As long as the prize package is less than 4.4 pounds and 2000 US$, we don’t pay import taxes in Colombia.