I'm sure we're all on their lists somewhere, even though they are not supposed to keep a list of names from background checks it's done on computers so I'll bet they do. The multiple purchase report just tells them what you bought and if you're not buying lot's of High Points, Lorcins and other cheap guns (or maybe potential "assault rifles") you probably won't get flagged as a possible gunrunner. I don't worry about it much, figure I've bought enough guns over the years, hunting licenses, concealed carry and written letters to enough politicians to get their attention already.