its great that Git wants to explain what it got to offer to me, but why on step #7 it is mandatory to create a new account??
this killed entire positive experience, in my view.
Github wants to explain what Git has to offer you. I assume they want to see you as a potential customer, and if nothing else it gives you a real live low-risk git repository to play with after you're done with the tutorial.
Designers can fix small things, like images, tweak html a bit etc. They dont need to know how to create/merge new branches etc..
I dont see that Git is trying to pretend that its simple but i can see how that interactive tutorial can be incredible useful to a lot of people.