Maybe I shouldn't have singled out Moore without more context, but I was generally referring to that sort of opinion. I wouldn't say it's common, but I see it come up and be alluded to from time to time, even from some high-profile writers*, so I figured it's a good idea to discuss it.
*Grant Morrison for example has alluded to it before:
According to the webchat Morrison gave at Next Planet Over in 1999, the story was to begin with an attack by Mysterio, resulting in Spider-Man waking in a parallel world where Aunt May died and Peter never married.
"The Spider-Man of that world is a creepy, skinny Ditko guy, who lives on his own and is shunned by the neighbors." said Morrison, "He only comes alive when he's out on the rooftops leaping about and squirting jets of white stuff over everything. Freud would have loved the story as the creepy but ultimately decent Spider-Man meets his counterpart from a place where Peter married a supermodel and made lots of money. The story was based around that tension and the ultimate redemption of the creepy Ditko character. I'd do something different now."