My wall recently got hit twice in a row by Florencelorena123 who has since been blocked (I assume globally) for doing that thing where the thread page redirects to the thread's message wall page (I am not sure if there is a name for this). The two threads are Thread:1063547 and Thread:1063550.
The threads have been removed from my wall and "following" section on my user page. However, since I cannot actually view the threads (because they redirect), the "new message" alerts remain pinned in my Wikia navigation bar. Also, I am unable to unfollow the threads which I am assuming would be the usual way to get threads to stop showing up under alerts.
Is there some other way to remove these threads from my alerts, or will they be pinned there for a while if not forever?