I used to use OKCupid, and it was so much better than Tinder. Unfortunately, Tinder's success changed the game and it seems like all the dating sites follow its general form now. On old OKC people would write freaking novels in their bios, in addition to answering hundreds of questions. On Tinder, if you have even two complete sentences in your profile, you're an outlier. It's an explicitly, aggressively shallow platform.
I don't think the old message-anyone method scales well, though. Dating sites are far more popular today than they were back when I used OKC. And even back then, every woman I knew who used it turned off notifications because it was overwhelming.