Wouldn't a simple rating system for dates help a ton?
aka trolls and spammers will use this feature more than honest people will
So a good signal is probably someone with few ratings. Which would seem to defeat the point of a rating system, as a five-out-of-five rating is now a bad sign.
Anecdotally, this does comport with my experience back when OKCupid would tell you how old someone's account was. It was far easier to make contact and have a conversation with a new account than with one months to years old.
Truth is, an app isn’t going to solve for people’s insecure attachment styles and malAdaptive coping strategies.
Perhaps an app that matches based on symmetrical childhood traumas would be a hit.
What incentive does anyone have to keep using the service to provide such "feedback" if they find their match, leaving aside the creepiness factor of a service asking for such information? (And please, don't create such an incentive.) If they find their way back into the service, then (ignoring relatively rare cases) something didn't work out.
So, a service that helped people gain awareness of their patterns and provided a mechanism for mutual feedback would be useful to someone who is interested in improving the skills of love and relationship.
There already exist apps that people use for feedback and communication in romantic relationship.
And, most relationships end (they all do eventually to mortality). How they end is very telling of the success of the next one.
The problem isn’t really the matching algorithms, it's that people lack the understanding and modeling of how to have healthy adult relationships, they carry a lot of unprocessed trauma, and they don't have a context or tools to work through those old patterns.
It's like making an HR app to match a lot of aspiring kindergartners to AI jobs or the space program.
If someone is looking for a long-term relationship, two selective people who both find who they're selecting for in each other seems like a good thing.
(That said, ratings in this area would have a huge number of problems. Not least of which that outcomes would strongly influence ratings, and if both people are happy then they stop needing the service, so any rating will come from a match in which one or the other person wasn't happy.)
What's the standard when it comes to a date? People's expectations will vary greatly.
Edit: Now that I think about this more, I am not sure how a rating would work. "He's a 5 star! Would totally date him again!" Wait, what? Why would you stop?