I was sent an invite to Keybase a few weeks, which I accepted tonight.
Keybase Wants To Make Serious Encryption Accessible To Mere Mortals explains:
From a cryptographic standpoint, PGP is rock solid. In practice, using it is very messy. Its complexity has deterred the vast majority of people who might otherwise benefit from using encryption.
The first problem is establishing a valid identity, especially with other people located oceans away. The second is distributing public keys without nefarious types posting alternative keys that appear to be registered to the same person. … The third issue is getting people to install and use PGP software.
I can now be reached via https://keybase.io/georgevreilly. I’ve proved my identity on GeorgeVReilly.com, GitHub, Twitter, Reddit, and Hacker News.