This is insane. I used okc years ago and met my partner on it but also had some rather unpleasant experiences with people who I would very much rather not know my (very uncommon and easy to google) name.
A lot of people on okc are also in non-conventional relationships that they would I imagine like to be able to choose to show or not show to the rest of the world. Hide usernames fine, but forcibly make everyone use real names? That’s idiotic.