I'd hazard a guess it's because of people disagreeing with your analogy. Even though it's cute, tinder boosts and advertising are generally not considered to be the same product or use case
How is it not an ad? You're paying to be exposed to more people.
Precisely. I really don’t see the different between an ad which is just sponsored content and a boosted tinder profile where the additional reach it created is effectively sponsored content. I get that it is not really an ad. But my point is that its tricky to define IAP conditions.