that's so beyond obviously a sarcastic remark. In that regard I'd consider a vast majority of the humans totally capable of detecting dead pan sarcasm both in spoken and written speech.

Isn’t there a well known internet adage that speaks to this?

Do you remember what it is?

Cunningham's law

Cunningham himself even claims it was a misquote, and that he never suggested such a thing.

“Shouting incorrect directions in Ironforge” predates Cunningham by several years in any case.