And I still think it’s funny.
It’s really not that funny and never was.
This doesn’t have the same tone.
You are funny! Let’s all go down to the quarry and do something.
an’ shit!
I burning your doggedness.
'Zactly.
To me the “you misspelled” trope means “I’m introducing some clever wordplay here; this isn’t a serious suggestion of what you should have said. I agree with what you said; you played it like a good straight man and now I’ll deliver my zinger.”
“You should have said …” reads as boring and flat as can be, and is almost a criticism, rather than a back-handed compliment.
The more clever, zany, or both that follows “misspelled”, the better the humor.
So why are the responses after “you misspelled” never very clever or zany?
Because most of us aren’t quite that clever?
Or zany.
Dan
I think it’s “Rio” by Duran Duran.
[NARRATOR: It isn’t.]
It’s pretty much the same humor behind this classic Bloom country strip.
If you were really clever, you’d have put “Hi Opal” third.
He did, he just misspelled “Hi Opal” and “once for 20 minutes”.
Touché and counter-touché. 
Now that’s the sort of witty wordplay and repartee that is sometimes missing from our new and more serious SDMB. As lamented over here:
Heh. The first Pit thread I ever started, I got griped at for using the term “cow-orker” apparently past its best-by date (in someone’s opinion).
In other words, they had a cow over your word choices? Maybe we need to start using “cow-poster” or “cow-Doper” for folks like that. 
Still haven’t sold me. NOTHING MISSPELLED.
And flies could’t screw in a light bulb because it’s sealed and full of inert gas.