I too am skeptical of the usefuless of this data. along with the risks of self-reported information, there's also going to be some skew towards people who have high income since (a) they are proud to share it and (b) people who are lower paid might be reluctant to "admit" it
> I think Spotify might actually do better by creative innovative new engineering features and improvements
If the problem is user acquisition, you don't get there with engineering improvements. Only exception is if those tech/product improvements are for increasing virality.
Yes they'll probably spend the money on marketing / PR, which makes sense since that's likely where the bottleneck (or foreseeable bottleneck given the other players in the industry) in their business is now.
> https://en.wikiquote.org/wiki/John_Templeton