Monetary needs and all that. If it’s a startup with VC then there is either not enough people paying or not enough private users supporting by other means like bug fixing, support, etc. Or greed by VC.

Well, VC is greedy by design. A VC-funded business will never be optimized for longevity, a good product or happy customers. They may achieve those things en passant, but they’re never the objective.

For example: Any case of “there is not enough people paying” can also be rendered as “the scale and moving speed of the business is way off”.