Did you see it coming? I hope you did. Bountiful Bags is a guild perk that most "highend" guilds have recently hit. How does this affect you?
Now without going into too much detail (as I am not guilded in one that high currently), I spoke with a gent and he mentioned that there is around a 10-15% proc. I imagine you are thinking the same thing that I am here. More ore, more leather, more herbs, and more dust and essences....
*EDIT- It seems that this is also working with Archaelogy Fragements as well....I am sure this will get nerfed by the kind folks at blizz.....You might see an influx of some Arch "junk" hitting your AH. If you have the perk available, get em while you can! - - - - - - - - - It seems to have a double "proc" - - - - - - - -
Wowiki explains this as:
Bountiful Bags is a Guild Perk granted at guild level 23 that increases the amount of materials gained from Mining, Skinning, Herbalism, and Disenchanting.
Wowhead has some great comments already:
By fenriradra (1) yesterday at 11:05 PM (Patch 4.0.6)
By PROXiCiDE (4) today at 8:12 AM (Patch 4.0.6)
Our guild hit this yesterday morning and on one Copper Vien, i got 10 Copper Ore from it i was amazed but it seems that it looks this could be a proc than anything. Because i will mine agian and it would be normalized ore from the vien
Now before you say "The bots aren't in guilds"....well, you might be right, but you might be wrong. I guess you have to look at it both ways here. Let me ask you this....If you are in a guild with the "bountiful bag" perk, are you NOT going to hit up a few herbs, rock some ore, or skin up some beasts? You might....You might not.....But you mos def are probably doing the Obsidium Shuffle (especially if you are reading this). Be prepared for a volatile market coming soon.
This is what I can see happening on the "higher end" servers. The dust and essences are gonna be falling. Which in turn the snowball affect will happen with scrolls for Cata enchants (if they aren't tanked already). Get busy livin, or get busy dying....
So whatcha gonna do? How will this affect your server? Are you going to keep an eye out? Or do you not care, just roll with it?
So far, after herbing a TON of ice cap & mountain silversage (for milling on a different toon, for darkmoon decks O.o)
it's looking very much like a 15% chance when you gather for a double-loot.
The extra loot seems like it's treated like an extra node you gathered from, and rerolled for quantity, but it will not contain any extra stuff like volatile life/etc, just the base material. This was after gathering a small sample of about 200 whiptail in Uldum.