[Razengan]

> Why would someone build software that sophisticated and not expected to be rewarded for their time and effort?

How are the people who built HN, Reddit, Facebook, Google, Instagram, TikTok etc. being “rewarded for their time and effort?”

Why can’t the same be done for dating?

[Dracophoenix]

Reddit, Meta, Tiktok, and Alphabet have investors and make much of their own revenue from ads. HN isn't a meet-and-greet site but a discussion forum hosted at the benefaction of YC.

What you're looking for takes enough intelligence to solve and code a solution to the optimal stopping problem, enough money to perpetually host such a system, and enough legal training and patience to comply with the legislative demands of 200 countries. Why shouldn't such a company want to be rewarded in hard currency and no just likes or gratitude?