I'm really surprised you didn't stress the importance of having useful fragment identifiers for every section, and using references to them liberally -- and not just the obvious <a href="#foo">foo</a> -- tertiary links inline in prose like Suck.com popularized in the olden times.

Some nitpicks:

and you need to understand why I’m putting the commas and semicolons in this sentence inside the quotes, not outside

I know why you do that, but it doesn't make it any less bullshit. It's not like you're doublestriking on a monospaced typewriter or manually kerning on a press! Don't pollute what are ostensibly quotes with exterior punctuation. At least you're using the oxford comma :)

Mostly, this means using emphasis and strong text frequently. I usually avoid too much strong because it’s looks like I’m just aping Jakob Neilsen, but whatever.

An apter and and more pejorative example for today's whippersnapper would be Jeff Atwood. In my opinion using <em> and <strong> with default styles is worse than useless, just use <i> and <b>, they aren't poisonous. I did appreciate the <em> as yellow-highliter fad that 37signals kicked off years ago.