Sorry, I don't have anything to say about the Max vs. Pleikki spat. Honestly, I didn't bother reading. Not interested in learning about current events. I'm here to argue in strictly abstract terms about things I used to know about! Let's do it!
I don't agree that it's impossible to manipulate markets via PC. We saw that a *lot* on Guru. When the general public thought Guru was the place to go with their high-end items and certain talking heads (who I won't name) dominated that site, market manipulation happened All. The. Time. I can't say whether it's been happening here because, frankly, I don't pay attention anymore. The level of disagreement that's happening is actually a good sign that the fix isn't in around here. A lack of disagreement is the danger sign. As long as Max and Pleikki are conspicuously disagreeing with each other over PCs, I have a hard time believing that either one is successfully manipulating the market. Their disagreements spread information into the Guild Wars universe, like the collision of those two neutron stars I just read about. Checks and balances. Light and dark. Yin and Yang. Balance. Keep up the good work, boys!
I guess I have doubts about this idea of individual collectors being able to hoard to the point of creating rarity where there really is none. It seems to me like if that's possible, then the item is pretty effing rare to begin with. For example, I don't know how many people out there have a req 8 15^50 clouded maul, but I know Kabong has more than one. Not many more than one, but definitely more than one. He loved that skin so he grabbed them when he saw them (or I grabbed them for him). In the end, though, I don't think he has more than a handful (3? 4? Maybe 5?). That's not artificial rarity created by hoarding. That's a dedicated collector who loved a rare item (and his brother) who worked hard enough to buy nice clouded mauls when they appeared. Even if Kabong didn't own any of those hammers, they'd still be pretty effing rare.
No doubt there's such a thing as hoarding (collectors are especially prone to that disease), but does somebody really own so many req 8 +5e oni blades (or whatever) to create a market shortage beyond the actual rarity of the item? Again, I'm out of the game these days so this is an honest question, not a rhetorical one. Maybe you know of someone sitting on mule account full of those things. I dunno. You tell me.