I run the https://webri.ng/ platform, which got a mention in the article. It provides a simple platform for managing your own webrings, without any extra bells and whistles. It's in bad need of a UI overhaul, but otherwise everything is going well!
It took me a while to realise those are the actual colors and it wasn't a modal background overlay, half-left over by my adblocker. Big money ruined the open web.