I like this, but just to play devil's advocate: What if I don't know how to use the site? Or worse, if I'm immediately turned off by anything that looks complicated.
Perhaps it could default to a regular site, and this could be an option "Are you a hacker? Yes/no"
That said, I support your decision to keep this as the default in the spirit of hacking.
I just browsed around like a regular site, clicked a couple of the links. I didn't realise you could type stuff in as well. So I would say the "browse like a regular site" is already built in. Plus its probably aimed at other software developers, as it covers the work he has done so his target audience ought to understand it.
Perhaps it could default to a regular site, and this could be an option "Are you a hacker? Yes/no"
That said, I support your decision to keep this as the default in the spirit of hacking.