Keybases popularity falling off a cliff isn't really surprising, their venture into shitcoinery already put them on thin ice with the anti-cryptocurrency crowd, and then development basically ceased overnight after the Zoom acquisition. I don't know why they're even bothering to keep the lights on, it's been five years of radio silence at this point.

keybase had promise early on but kinda lost the plot. the vouching system was neat in theory but never really caught on outside a small circle. the crypto stuff definitely didn’t help, and once zoom bought them it was basically a ghost town, no roadmap, no real dev activity, just inertia.

feels like identity + trust systems keep coming back around but never quite stick. maybe too hard to balance usability, decentralization, and adoption all at once.

Keybase was great. The idea behind it (using private key to prove your identity) is the idea behind some of the default methods for the Decentralized Identifier (DID) standard: https://www.w3.org/TR/did-1.0/

There are some good ideas there (and Bluekey uses DIDs: https://atproto.com/specs/did)

I feel like keybase was a good idea but needs to be redone. I guess there's keyoxide (any other?). What are people's thoughts on that?

https://keyoxide.org/

You'll find that most self-described "CypherPunks" are just "CryptoShills".