I'd like to know more about your specific circumstances, as there is a lot that you have not said.
Are you getting dates via dating apps, and are those dates with people who's looks* rate lower than yours?
And lets take that further--have you found a long-term relationship through these dating apps, or is your goal casual dating?
Of your dates, how many of them lead to 2nd, 3rd, and 4th dates with the same person?
The original comment was creating an app for people who are effectively 3-7 out of 10 on desirability scale, because presumably dating apps only cater to 8-10/10.
Dating apps cater to men ~9-10 and women ~4-10. Many women would rather have sex once every two weeks with a polygamous man they consider a "9" than sex every night with a monogamous man they consider a "5". This has always been true but dating apps have enabled it at scale in society-transforming ways.
This isn't just speculation, it's from data that OKCupid blogged and then un-blogged when they were acquired by Match.
As a self-admitted solid 5/10 average-as-it-gets human, not only do I acknowledge my own existence, but I've also managed to, somehow, get dates.
Said more crassly: Perhaps not everyone is as shallow as you.