Since the auditor is always the current user, listing it on each audit isn't super helpful. More useful would be to have the author of the commit.
(The "Problem Commits" section shows Author, but once again that's always you and showing the person who raised the concern would be much more helpful! Maybe .phui-object-item-bar-color-red would be appropriate for Problem Commits too.)
(Maybe Dashboard was the wrong project for this? Looks like you're not a member of that project so maybe you won't see this unless I CC you now…)
The "Auditor" can also be a project / package you're a member of, I think. But I'm broadly suspicious of all the Audit-related list interfaces.
I'm planning a sweep through Audit at some point soon, but might not get to this until that happens.