There was a discussion about this in the Trolls R Us Resurrections thread shortly after it occurred. See link in the thread.
Note what @puzzlegal actually said:
“into thread shit territory” is, I think, supposed to mean that it was close but not an actual thread shit. The main point of the moderation seems to be that the post is way, way off topic. And the other point is that it is just a note, with the post hidden/spoilered, so no lasting harm to the poster.