Compare the web version and the android version:


Topics with which the bug appears:
<shpank> "gibt keine news" | Moters Gewicht: 72.2kg
shpank> "gibt keine news" | Moters Gewicht: 72.2kg
Topics with which the bug does not appear:
blub> "gibt keine news" | Moters Gewicht: 72.2kg
"gibt keine news" | Moters Gewicht: 72.2kg
shpank is a user in the channel. blub is not.
My guess is, that it detects a nick and then styles it in some way, and the topic shows up in a weird way like that.