Filter "unknown" users from Promote Campaigns & Analytics

1.Is there a way to only target logged in users in Promote campaigns? While sales could potentially come from these folks, I'd rather have real user names to follow up with

2.On a related note, it would be great if we could filter out “Unknown” users from analytics?

Unknowns could be real people, they could be bots, but without a username associated it feels like we're paying to Promote to ghosts.