I know exactly who you are talking about! If I had to read what most of these Signers are saying, just by reading facial expressions alone, it would translate:
“That tastes icky!”
“I feel icky!”
“I think you are icky!”
“That person is silly-beans!”
“I’m going to bonk a kitten noggin!”
“OW! A pineapple is in my pooper!”
Your “translations” hit my sillybone so hard I can’t stop laughing.