[rachofsunshine]

Incentives are part of the story, but not all of it. Users can, and do, behave in ways that are deeply suboptimal in terms of getting the results they want. (In fact, the biggest success we had late in Triplebyte's history largely consisted of removing user agency in a way that didn't feel bad to them, precisely because users were behaving in ways that were counterproductive.)

Sophisticated users on mature platforms generally behave more-or-less rationally, but those will not be most of your users early on. That's to your benefit, because abuses take time to arise - you can get away with stuff on year one or two of your platform that would be a glaring vulnerability in year ten.