I like that advice; don't build a following on someone else's platform. It could be extended to not building something that relies entirely on service X's API b

I like that advice; don't build a following on someone else's platform. It could be extended to not building something that relies entirely on service X's API being open, because the moment they see the value in what you're doing, they'll want to shut it down and do it themselves. Also - great work, congrats on the success!