Staff coloured posts infect others
Clicking the "in-reply to" icon on a staff coloured post to inline-expand the previous three posts infects the newly presented posts with the staff colour, even when the original posts weren't staff coloured.
I suspect wiki-posts would do the same.
Edit: 2nd to notice it it seems.
Good catch, I suggest you report it on met... oh.
Staff infections can be quite bad.
And drug-resistant staff infections are the worst...