Hey, at Fork the Cookbook, we're doing just that right now! It's one of the primary reasons why we said Search is Hard [0]. And we're working hard on search.
We've also put a lot of time and effort into researching the licensing issues, as well as design issues: how to present certain things like diffs, and stuff. So if you like, you should check out Fork the Cookbook: http://forkthecookbook.com
Hey there, it's not a feature we've pushed out live yet. There is code to see diffs, but no on the public facing UI yet.
The reason is this: We don't want to aim at the tech crowd (which is why you haven't seen a Show HN from Fork the Cookbook). The tech crowd knows what diffs are. We're used to reading things that look like this:
But the public aren't used to reading stuff like this. What we're working on is a comprehensive way to explain what diffs are, and what it means. So we're back at square one, designing a representation that is human worthy.
We've also put a lot of time and effort into researching the licensing issues, as well as design issues: how to present certain things like diffs, and stuff. So if you like, you should check out Fork the Cookbook: http://forkthecookbook.com
[0] http://theforkingchef.com/post/40890655560/search-is-hard-pa...