I think TOTV needs to add a SARCASM icon, gif, emoji - whatever you want to call it.
A smaller version of this would be inserted by the poster:
Obviously, sarcastic remarks are frequently included in posts. What the poster forgets is the fact that readers can't detect the intent of sarcasm because we can't hear or see the clues that exist when we communicate face-to-face. Readers misinterpret the sarcastic remarks as fact and the fireworks follow.