On wikis such as the English Wikipedia, the dropdown of pre-filled reasons for deleting a revision that's on Special:RevisionDelete has messages for people with suppression. Although the tick box to actually suppress the edit is only displayed if you have the ability to do suppress edits, the messages in the dropdown are displayed regardless. They probably shouldn't be, considering it's not possible to legitimately use them if you're not capable of suppressing edits.
We should support displaying the dropdown messages conditionally somehow.