This is just what's needed to compliment Keybase. Anything that educates the methods and techniques required to secure messaging is a good thing. Keybase isn't as polished as some other messaging apps, but it raises the bar when it comes to privacy.

Pretty good guide covering Keybase features as well as PKI, OpenGPG/GnuPG, encryption/decryption, signing,authenticity/integrity and generic security & privacy guidelines average human beings can understand. Thumbs up, Keybase, going to take off in 2020?

Not unless the product evolves to be more than a Slack + Dropbox + GitHub clone with E2EE as the only differentiator, or they convince people that E2EE is worth trading for a weaker UX and feature set.