Keybase is utterly unusable since you introduced the chat feature. I use a yubikey to store my gpg key so I get prompted every 5 minutes to enter my pin because for some reason keybase insists on requesting it over and over again even though I'm not even using the applcation.
FWIW, I also use a Yubikey and don't have this problem with Keybase. I'm running Keybase on a combination of Ubuntu and Debian machines. My master key is completely offline, and my subkeys are all on my Yubikey.
