Letter printed in Fantastic Four #22 (January 1964)
With an attitude like that, Mister Jack Harris, you'll never get a job at Marvel Comics. Yah boo!
Later, in 1994, this Marvel comic book miniseries came out:
Spider-Man: Web of Doom #1-3 (August-October 1994)
The scripter of Web of Doom? Ah, you oughta have guessed by now. Jack C. Harris. Yep. Same guy.
So the lesson is...the moral of the story is...what you should learn from this...
Eh, I got nothin'.