I worked at OkCupid from 2013-2017 and totally resonate with the author that mid-2010s OkCupid was a really special product, and that it took a steep decline as the decade went on. It's not entirely fair to say that the Match acquisition immediately caused that decline; I started a couple years after Match got the company in its hands, and only two of the original founders were still focused on OkCupid full time. But…
I met my wife on OkCupid. The original format attracted a much smarter and more worldly crowd of women, to put it bluntly, than the other services. I exited the dating game before Tinder, but if OkCupid lost that quirky, artsy, college educated crowd in the chase to compete, that's a real shame.
When OKC was great, the random median many-hours-on-the-internet-every-day user was a lot better than it is today. Now that's just a median member of the general public, thanks to the ubiquity of social media.