A user, Nathaniel_Mattocks, encountered a bug on the Gearbox Software forums where the suggested topics section was displaying the category of the previously read topic instead of the current one. codinghorror confirmed it was a legitimate bug that has been around for a while and tagged @eviltrout to take a look. Nathaniel_Mattocks wondered if the issue had been reported before and was informed by cpradio that he should receive a Bug Reporter badge. The issue has since been fixed by @eviltrout with a commit to the Discourse repository.
I went to the Gearbox Software forums, and when I was reading around I clicked on one of my notifications to read it, and at the bottom of the page in suggested topics, I saw the category of the topic I read before instead of the one I am reading: