Dating sites definitely need some ML and AI thrown at them for the user, so we can make basic decision trees and save ourselves time and effort. Is there an actual person in the photos? Is it obvious which person it is? Are there any that aren't close up selfies? Are there any close up selfies? Are they smiling? Any red flags like pictures of Machu Picchu or marathons or massive glasses of alcohol or teardrop tattoos…
At the very least, dating sites should have all the data they need to figure out what a user's "type" might be and prioritize profiles matching that type.
Turns out people don't give a shit about compatibility, they just want to date hot people. Figures.