Implement "Masquerade As..."
We frequently get users who, for whatever reason, are having issues. For example, right now one of my VPs is complaining that he can't see any posts to advocate. The screenshot that he provided shows that's the case, but I have no way to troubleshoot this, because I'm an admin and when I look at the board there's plenty of content.
On several of the other platforms we use, the ability to "masquerade" as another user is available to admins. This allows an admin to interact with the system as if they are credentialed as another user, rather than themselves. It is a very useful feature for debugging UX issues.