"hot people" is what I was getting at by "type". Machine learning nowadays should be able to figure out "hey, this user likes people who look like this, so let's prioritize potential matches who look like this".

If you wanna get extra dystopian, link the profile to a PornHub account and figure out the user's "type" that way.

What people consider "hot" can be extremely different. For me any attraction to a woman completely disappears if doesn't have natural brunette hair, isn't interested in STEM, likes cats, has different political views from me, etc. I'm sure I'm not the only one with strict preferences. I've always felt like dating apps didn't put enough effort into capitalizing on that. Luckily I'm married and don't have to worry about that anymore.

People did. OKC didn’t.

OKC pivoted to volume and frequency of swipes over quality of matches, the superficial engagement metric that generally ruins content.