Reward producers: - that produces the first thing that makes an inactive customer active again - that produce something that is consumed by those who don't consume much else on the platform - that complements existing content rather than being more of the same

However it's less about producers being rewarded for their success. Especially if the content is developed in-house and the decision is driven by market research.

It's easy to be saturated within a genre. Most games take quite a while to finish. If people stop playing on your service it's not because they finished all the games there. It's because they are bored with the offering, i.e. the diversity of the offering.