Back in the day, okcupid did this for me. I'm quirky, and expect the same in dates. It wasn't just a biography, you could see their answers to all sorts of random crap. This gave a fuller picture of a person. Of course, I had already learned that falling in love online was a bright red flag, so my expectation was somewhat less than finding that monkey brain chemistry: I was looking for people who I could tolerate (and vice verse!) long enough to figure that part out.
After my first marriage ended, apps had all turned into tindr, and it seems that quirky folks end up in the generic loser pile, while the top 1-10% are doing bloodsport. Fortunate for me, I'm on the empathetic side of quirky and connecting with people in person is easy enough if I put myself out there. But there's the rub: solo tindr binges make me feel miserable, going out and living makes me feel alive -- and that's what people are attracted to.