Webform still won't let me submit. Did I fail a test?

Did you enter an email address? (And possibly leave the field after you've entered it?)

I wonder if this could've garnered any interest at all if it wasn't for Peter Seibel's name attached to it. I don't mean just the hn submission, the website itself.

I don't know who Peter Seibel is and this sounds like a pretty good idea to me.

No offense but what advantage does this have compared to phrack other than being more formal?

Phrack is about hacking in the cracking, reverse engineering, finding exploits meaning of the word. Code Quarterly is apparently about hacking in the Hacker News sense: have a quick look at the "types of article" list. They mention history, book reviews, interviews, etc.

They look very different to me...

What do you mean, "what advantage?" That's like asking what advantage is it to have Harper's as well as The New Yorker, when you could just have one magazine instead. They publish different things! If you like periodic long-form articles about programming, then you have twice as many of them, that's the advantage!