He uses the verb glyphs, but with a bit of whiteout and a pen, I'm sure you'll find that everything he says... in ALL of the articles... works for all professions.

Or, you know, you can think.

Blacksmithing? Belt buckles
Jewelcrafting? Gems
Leatherworking/Tailoring? Leg enchants
Alchemy? 98% of what you make
Engineering? Forum Tears

It's just product that you're paying for. He uses glyphs because they're a huge market that is now as big of turmoil as the post-roll-to-Disenchant market. Enchanting Mats used to be a HUGE market. Then glyphs became huge. Now there's people with high level of product (in this case, glyphs) with a slowly decaying market. They'll be alive for about 4-6 months, and then scribes will be down to (with the info they have now) trinkets, and Dust o' disappearance... the latter of which is capped at 10g/each, because that's what it is sold at a vendor for.

I, honestly, think Jewelcrafting is next. I could definitely see jewels getting normalized in some form similar to the LoL Runes:
http://www.gamereplays.org/community/uploads/post-94042-1282117053_thumb.jpg

As fun as the Economy game is, Blizzard isn't afraid of nerfing it when people feel that you HAVE to have a toon of X profession to have the needed amount of gold.