Subscriber here. I think paying the $10 a month provides another incentive for me to read. I don't know if I am getting $10 worth of material to read each month, i.e. finishing about half a book every month, but it sure has increased the amount of reading I do since I started using the service.
My browser (Chrome) shares screen real estate between its search functionality and address bar. Therefore, if I have searched "facebook" on Google but have not explicitly typed "http://facebook.com" into the address bar, Chrome remembers the "facebook" search as I start to type it out. As a user, the next most obvious action to take is to tab-complete + enter, and voila, there goes the Google search for "facebook".
I really disagree with this. For your first hire, a full time sysadmin who cannot work on developing the product itself is just as useless as hiring a developer who cannot ship the code.
I think what this article is trying to get at is that your fire hire should be a full-stack engineer who can also play the DevOps role when needed.
I think saying a sysadmin 'cannot work on developing the product itself', is silly. I think it's a given that anyone joining at such an early stage of a company is going to be developing the product. You will definitely need a sysadmin that can develop the product and move fast. Your architecture is part of the product, and the sysadmin should help with the design and implementation of the architecture, as well as possibly parts of the codebase going onto that architecture.