They seem to advocate and educate people about the benefits of trade-free wifi for everybody. No password, no encryption they say. Of course these open wifis are not all around the world so far, so one could argue that’s a trade, as you have to be at a certain place to access that open wifi, but I see that more like the language trade of an organization who provides say trade-free books and they are not available in your language. Important is: It’s trade-free if they don’t ask anything in return. And if that’s the case of these open-wifis then they’re trade-free.