You don't need keybase to sign your commits. Any standard and key-exchange compatible pgp/gpg client will do. By using keybase you're just adding more work for everyone.
Keybase makes it really easy to sign commits. By using keybase you get to manage keys and sign quickly. gpg will take hours of reading with its non-intuative cli. You're making less work for yourself.
Gpg is the flossing of encryption. It has great efficacy and terrible efficiency.
I think the cooler part of keybase.io is that it provides a platform for authenticating your separate social accounts (reddit,twitter, etc...) along with websites and github. That's pretty neat, and I can't say I've seen something like it before.
Send me an email at [my username with the underscore replaced with a period] at the mail service owned by Google.
Hi!
I have a couple dozen. [username] and google's email service. I'm at work now so I might not get to requests until lunch or after work.
I've got about 25 left. Feel free to contact me at one of the places listed on my keybase: https://keybase.io/nickpoorman