This meets the criteria of Poe's law. It is equally reasonable to assume _you_ are being sarcastic or serious. If they didn't just recently look up the definition themselves, they wouldn't have commented about the conflict in the two definitions.
The commenter specifically used the word nonplussed in reference to the ranking of this post on the front page. The fact that their surprise and confusion stems from the promotion of unimpressive stories does not change the meaning from surprised and confused to unimpressed.
Well its certainaly not a non negative statement because its talking about being plussed, which is a positive statement, so a nonplussed person is truly chaotic-neutral.
