The only thing preventing me from using this is it makes UI's very cluttered, especially in scenarios with a lot of verified users. I only care about the Keybase verification as from there I can check for the rest. Hovering Keybase would provide an interface to show the rest. I see there's an issue to change the UI so I look forward to that - so I guess I'll wait.
E: It's very cluttered in this thread, for example [0]. Also, in Chrome, a users' verified websites don't appear - they do in Firefox.