Not sure why this isn't already implemented, it is a pretty important feature, but anyways, please add an area where a logged-in user can see:
-Current active warnings/infractions on their account
-Expired warnings/infractions on their account
-Revoked warnings/infractions on their account
Maybe also an option for users to report active warnings/infractions which only administrators can see the reports of, in case a user felt the reasoning was unfair.