Yeah, it's interesting how many people have had the same idea at some point or another. I was fiddling around with Rails and AWS for a bit around 4 years ago and used the same idea for a tiny project. It's a bit like deja vu.
https://github.com/ehotinger/OldCode/tree/master/VariantChef
Nothing unless you're rebasing upstream, but I think the point he was trying to make was that you should always run `git fetch` and then `merge` from there (again, there are some situations where the pull is fine IMHO).