You are nit-picking. Marketing refers in this context to not or semi-directed advertising like ... ... ads. You know those stinky blinky patches of moving col

You are nit-picking. Marketing refers in this context to not or semi-directed advertising like ... ... ads. You know those stinky blinky patches of moving colors next to a text you would like to read. Never seen them do that. Duolingo only relied on organic and peer-to-peer advertisement - very healthy - I like this a lot - kudos to them!