I remember that one dude they interviewed like 10 year ago who basically made his own algorithm to find the perfect match on I think several dating apps including Tinder.
It would also tell him a ton of information about each person from web scraping other profiles and stuff.
He said he got about 200 dates that all went really well because he knew everything about the person, and the algorithm would sift through thousands at a time to match someone he wanted.
After all that, he still never committed to anyone, eventually stopped his scripted thing, deleted all his dating app profiles, and met his future wife months later IRL by complete chance lol.
His description of how his analysis of the OKCupid questions discovered that there were 7 discrete cluster of personality that it would put you in was awesome.
He then make three profiles. One for each of the clusters he felt he was most like, but the profiles targeted the groups very specifically and so his matches started climbing like crazy.
After going on many many dates, he dropped two of the profiles because he found that he didn't click with the women that they matched with.
The description of going on two dates to the same location in the same day with different women because ran out of novel date locations was hilarious.
Data science nerd out played a data driven system.