Neither humor nor sarcasm advance interesting conversations on their own IMO.

And yet humor and sarcasm can add spice to the conversation. I really did read the entire paper at the level of detail that allowed me to spot the inconsistency in the font. That was not made up, was substantive and should be corrected before it goes to print.

The PS was also very real as the grandparent gets buried under downvotes.

room temperature superconductor does not need 'spice', save the clowning for something trivial