It's like a bookstore that allows anybody to walk in from the street, browse the shelves and read books on a couch, but then says that you're only allowed to do any of this if you also make a purchase or politely listen to one of their employees give me a sales pitch. Well unless they get the cops to arrest me for trespassing, I don't care about their rule. I'll browse their books, read a few, and walk out without buying anything if I please.

If they don't like this, they can turn me away at the door. But they don't, they let me and I'm not signing any contracts with them, so fuck their rule.