I do not understand this mindset. A lot of people explain writers' inability to see the flaws in their work as the writer thinking of hir work as hir baby, and therefore flawless and lovable.

Which is an okay analogy, for some things -- I do love the stories I am telling and often miss the cliches, overdone themes, plot holes, etc. -- but I would NEVER submit it anywhere without editing the hell out of it^*. That would be like sending my baby out to play in the snow wearing summer clothes and no shoes. Just... why?

*Note: I have only really written a lot fannishly, and have therefore never actually submitted anything to professional markets. Or had any actual children. So perhaps I am missing something obvious.