Gists - The second class citizens of Github
So, let me start by saying that gists are awesome. There's no faster, simpler way for me to share code snippts with syntax highlighting for all to see, clone, comment on and assist with.
But something has been bothering me about gists for some time. A "Gist" in Github parlance, is a git repository backed file (or set of files) which can be edited in the browser by the owner and commented on by other users. Each edit is a github commit (with a commit SHA) and you can link people to different versions of a diff via a URL.
What I wish you could do is link people to diffs themselves, as you can with a full github repository.