+++ This bug was initially created as a clone of T16352: Add patrol links/AJAX buttons on Special:Contributions/user +++
Splitting from T16352.
...those red !s are not shown for user contributions.
Probably part of the problem is how ephemeral patrolling is currently, so it would be a little confusing for the marks to just "disappear" on their own after 30 days.
URL: https://de.wikipedia.org/wiki/Spezial:Beiträge/Melancholie
See also: T31611: Make patrolled/unpatrolled status (more) visible in diffs and page history