Somebody really passionate about it has to make one and not sell it or make it publicly tradable? Which would be difficult since the market is rather full (I would guess). Also dating can be just a miserable experience if one lacks self esteem and does not fit into societal expectations of desirability - that’s not on dating app problem.

The problem, like with a lot of stuff, ist that they are for profit and optimized in a way to maximize profit over the actual functionality.

Digital goods are just not physical goods, you don’t really own them - which also mean you can’t really steal them.