Judge Richard Leon is now known for opinions that use a lot of exclamation points. You may think that this is only a modern turn driven by social media. But you would be wrong! There is precedent for this in the Supreme Court.
It appears (pending further research) that Justice McReynolds invented the judicial exclamation point. Here are parts of his Nebbia dissent in 1934:
“Demand at low prices being wholly insufficient, tlie proposed plan is to raise and fix higher minimum prices at stores and thereby aid -the producer whose output and prices remain unrestrained!”
“You cannot procure a quart of milk from the grocer although he is anxious to accept what you can pay and the demands of your household are urgent!”
“The fanciful scheme is to protect the farmer against undue exactions by prescribing the price at which milk disposed of by him at will may be resold!”
UPDATE: I was wrong! John Marshall used an exclamation point in Marbury!