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?