[mbowcutt]

I guess it removes an extra step, but is it all that useful to have every icon appear everywhere?

For instance, instead of having the Facebook icon appear by a user's Twitter name, couldn't a single icon show they're Proven for Twitter and link to their Keybase where I can see all their Proven identities, including Facebook?

[s3m4j]

[Twitter account] being proven by [Twitter account] kinda defeats the point. You'd want, at a glance, to be able to tell that this account has been linked and proven to belong to all of these other accounts, on these other independent websites.