It seems that Keybase is not getting any substantial love after the acquisition by Zoom about three years ago. That was also their last blog post. It seems that on GitHub there are still updates coming in, but the website and communication is dead since the takeover.
As things are moving and my proofs started to fall apart at services that I don’t use anymore. I’ve looked into Keyoxide and started to create identity proofs. It’s not perfect, but an easy way to verify decentralized online identities.
My Keyoxide Profile is now also linked on my main website.