Name me some things that would "break" the game if they got out of ST more often. Most of the Treasure items are already out, held by the knowledgeable elite players. Most of the "Reward" items, are also out. Seriously, name something that would change the game drastically if the doors were open. There's no way some "throwaways" are taking down an Archmage so what exactly do people fear.

Even the items that are still not easy to get (some scrolls/staves), would do absolutely nothing to landscape of the game - at all. Just because the Inferno is open, doesn't mean the items in the shops of Dis are everywhere. The good ones are usually in circulation, the rest aren't.

Also, you're in complete denial if you don't think info sharing still exists. I'd say a decent amount of the community is wired through other channels besides Dios and these main boards.