Years ago, on IMDb, a poster called rabbitmoon kept a thread going for years on the Rambo board that is still the best I've ever seen.
The whole thing started with him posting that he was shocked when, about a third of the way through the movie, there was a scene in which a character was shot with a bullet from a gun. Then he countered, completely earnestly and deadpan, every response he got.
The original thread is long gone, and the only thing I could find of it is an excerpt that was posted on Reddit - LINK
The sheer amount of people replying to the guy, completely oblivious to sarcasm.
It's a shame it's gone because it went on for much longer than what's in the reddit post.
Yeah - I used to check in on it from time to time, and there were always new responses, and new people trying to argue with him, and he'd just run them in circles with hilariously overly literal (mis)interpretations of whatever they said. It went on for years.
I'm pretty sure I remember the admin deleting part of it while it was still active, and eventually deleting it entirely. It's a shame - it should've been saved for posterity.