Do any of these keyservers perform email verification? It would go a good way towards some kind of verification that a user's GPG key corresponds to their email. Otherwise, anyone can generate a key with any email address and push it up to the servers. The standard way of verifying it (key-signing parties) is somewhat difficult.
To me a more useful model is the one implemented by keybase, where a number of proofs are provided, tying a specific key to the user's online identity (e.g. github profile/HN profile).
Many times I want to "communicate with the persion identified as X on site Y" and this allows that to occur.
Making users assume that emails are in _any way_ verified is dangerous because it is far too low of a bar to provide any practical security for PGP keys. Not to mention that PGP keys can be used outside the context of email (so the email could be empty or otherwise incorrect).
Agreed. The keyservers are public posting boards. You are meant to verify that the key is sufficiently signed in a chain all the way to yourself before you trust it. Anything on the keyservers that makes people think the key has already been verified is a bad thing.
