Inverted text/bad formatting on threads

[MRLimcon]

Describe the bug
The text appear inverted, because of what seems the poster username using some formatting.

On which Mbin instance did you find the bug?
mbin.potato-guy.space

Which Mbin version was running on the instance?
main

To Reproduce
Steps to reproduce the behavior:

1. Go to the !pbf@discuss.online magazine on a mbin instance
2. See the inverted text

Expected behavior
The text is not inverted

Screenshots

Desktop (please complete the following information):

• OS: Linux
• Browser: Librewolf
• Browser Version: 148

Smartphone (please complete the following information):

• Device: Xiaomi Redmi Note 9s and Moto G14
• OS: Android 15 and Android 14
• Browser: Fennec and Ironfox
• Browser Version: 148 for both

Additional context
Probably the username formatting.

The html inspector: