Ability to see what accounts users are "following"

We regularly get contacted by end users who don't understand why they're getting notifications for accounts to which they aren't assigned, and it's always that they have clicked the "Follow" button at some time in the past.

Also, when users leave our company, if they had clicked the "Follow" button at some point, we will get failure notifications on emails that were attempted to be sent to that user.

Would be great to have the ability to see what users are following which accounts, as well as the ability to forcibly remove the follow on the users behalf.