It's an idea that's been raised many times before : Code Review (less than a month old), Code Review section, anyone? (seven months old). (Let me remind everyone about the search function -- it's really handy! I tracked down these links by typing "code review" and "code review section" in the search box, although of course I recalled the discussions).

To the extent that there is a consensus (and this just may be because I'm part of the group that accepts the reasoning), it's that we can use existing code sections such as Craft for these purposes. Think of it as an open workshop, where you display your work (so far) and others come in and offer suggestions for improvement.

Philosophy can be made out of anything. Or less -- Jerry A. Fodor