> I've never understood why all the fork/change/commit/push/pull-request fol-de-rol is necessary. Why can't we just pull, hack, and submit a "push request"?

I've always wondered why GitHub doesn't add automatically add an "upstream" remote when forking a repo. Once you fork a repo in the GitHub UI, there is no way to pull changes from upstream repo other than manually creating your own "upstream" remote.