Its the online community, they will always complain about things. They are never happy, and its the vocal minority that you see. The content majority remain quiet. I guarantee you that for every one person who is vocal and complains, there are about 10-20 who are happy and quiet.
Barbs are fine, IAS was never something Barbs stacked as much as DH's. We couldn't, we need to watch our resists, vit, str, armor....we cant just focus on pure DPS. DH's were hit the hardest, and they deserved it. They were far too OP compared to the other classes and simply went all out DPS, and if you cannot see this then you are blind. Now you actually have to get resistances and vit so you do not get 1 shot. Big whoop, it takes you a couple more hits to kill a mob now, and you actually have to focus on more than 1 stat on the char. Now could they lighten up on the IAS nerf? Sure, 50% was a bit harsh. I would have expected something along the lines of 25% and there is still plenty of time for things to change.
They wanted players to use IAS, stop being foolish. They just had no clue it was going to be as powerful as it was. The game is just over a month old, and there are still many patches to come, including 1.1 which is the class balancing patch (ie: buffing/nerfing of abilities as needed. 1.03 only had a few minor class tweaks, 1.1 will be major).
Complaining about barrels and jars still? Seriously? I've been playing Diablo since D1 was a new title on the shelves of stores. Not once in D1 or D2 have I gotten anything of worth out of a Barrel or similar object. Usually some potions, maybe a gem here and there and a vendor blue or yellow. My set items, uniques and whatnot all came from mobs, and the occasional chest. In D3 I actually got a couple LEGENDARIES (equivalent to a D1/2 unique. Still not sure why they changed that..) just by smashing barrels, which seemed odd to me.
Anyone thinking they are trying to push the RMAH needs to take off the tinfoil hat. Did you know most of the fees for converting the money from Battle.net Balance into a PayPal account (the 15% cut)...DOESN'T go to Blizzard, but actually PAYPAL? It's to cover the fees for the transfer, they don't make anything off that fee. The $1.25 is Blizz's to keep but that's normal for any sort of auction, actually that's a low fee when you consider a R/L auctioneer will take 20%-50% of the earnings.
And go ahead and play GW2, your pessimism will not be missed.