You misdirected my quoted statement to assert a position I did not take. When I talk about flat-rate subs being a good UX, I am not talking about at a subsidized rate. My position is that people will pay more for a flat-rate sub than they are willing to through per-token billing. That is, a consumer who would only pay average $10/mo if they used the API will voluntarily pay $20/mo for a sub, because even though it's a worse value the latter is a tremendously more friendly user experience. When I say that flat-rate subs are necessary for traction, I mean that solely from a user experience perspective, not "subsidized usage is necessary for traction".