Punctuation and its discontents [gnomic ditty]

Said the Brit to the Yankee 'Hello!'
Responded the Yank "Well hello!"
The Brit's psychoanalyst explained
'Thicker ironies make the blokes glow!'

But the Yank wotted not he was glowing
he thought he was simply helloing!
The Yank's psychoanalyst allowed
"Those Brits favor irony skimmed low"