You're almost right. While I shouldn't have gotten on you so harshly (attacked is a strong word and I disagree that's what I did), I just thought your title and OP were a bit over-the-top. Posting a review that isn't glowing is one thing...but broadly stating "Otterbox Commuter is junk!" when there are tons of people that have received good products from them is another. So, if I made you feel "attacked"...I apologize.
As I stated later, I'd eat crow (and now I will), and I've now received two more of these today directly from Otterbox and I can now say you people having problems aren't crazy.

I got the blue/white combo and green/gray combo and the differences between these two new ones and the all-black one I had on my phone previously (which is the updated design and was purchased at a local AT&T store) are night and day. The very first thing I noticed is the silicone is COMPLETELY different in firmness. It's much more firm on the new ones, almost to the point of having a plastic feel. I'm not sure I like that.
I put the blue shell with the gray silicone on first and, what do yo know? It's got the same issues others have complained about (the shell won't fit "into" the silicone on one side of the back, causing the shell to not sit flush). At first, I thought this was because the shell seemed to be arched backward a little...so I did a little flexing of the top and bottom of the shell and put it back on. No dice. The problem still persists. If I pull the silicone out to the side a little and push the shell, it fits right into the silicone. But once you let go, it slides right back out and still doesn't line up.
Here's my conclusion...because they've decided to go with this "firmer" silicone, it's not as pliable as the old-style silicone (such as that on my all-black updated case or the one I used for 2 years on my 3GS). Because of this, the silicone doesn't get pushed out to the side of the shell allowing the shell to fall into the channel on the back.
While the cases look fine and you really have to look to notice these imperfections, it's not an acceptable thing. I have to say, I'm quite disappointed in Otterbox for letting these see the light of day. Every case of theirs that I've used in the past has been top-quality, but I feel these were rushed to market to meet demand after the 4S launched.
I don't know if I'll keep them or not. While the imperfections do bother me, I don't know if they bother me enough to go through the trouble of returning them for a refund.
And to anyone I may have called crazy for thinking these cases had flaws...I do apologize. I've been a ardent user of Otterbox cases for years and, since I already had one of the updated cases, figured they'd all be like that one. Obviously not.