Sure, we might go look at framework code sometimes. But it just looks like, well, code. There's usually nothing particularly famous-looking or even glamorous about it. Go look at the source code for Emacs or Rails or Python or Firefox, and it's just a big ball of code. In fact, often as not it's a big hairy ball, and the original author is focused on refactoring or even rewriting big sections of it.
http://steve-yegge.blogspot.com/2006/07/get-famous-by-not-programming.html
I wonder if he wrote that while worrying about this sort of thing.