Not to sound like an elitist snobb, but "How do I open a terminal?" was probably the last question I was expecting from someone trying to install Arc/HN.
His question wasn't even really "how do I open a terminal" but "where do I type commands?". It seems he wasn't even aware of the concept of a terminal.
Scary to think that people like this actually run websites...
Well if you're a windows user who is not familiar with other operating systems I would regard that as a legitimate question. For the first few years as a computer user the only computers I had access to were windows PCs in school, so it was only later that I became aware of other operating systems and their utilities.
They actually can. E.g. to start a WordPress site, one can do with a shared hosting with an ftp access. With FireFTP for Firefox, you don't have to leave the browser. You can install WordPress by just copying it over, as well all the plugins and themes you need.
This level of simplicity of deployment is a good thing to have for any project. Even David Heinemeier Hansson have commented positively on the immediacy of PHP: http://www.loudthinking.com/posts/23-the-immediacy-of-php I see that Arc is a research project that may have other priority at the time, but this landmark of usability is a good thing to keep in mind.
It's not even that complicated. All the large shared hosting companies have cPanel and Fantastico installed on their servers. You can sign up for hosting, log into the control panel, and install dozens of web apps including WordPress with the click of a link.
