The truth is, people don't come to a enthusiast car forum to praise the vehicle. They come to learn how to fix something, mod something or to b**** and moan that something broke and/or they had a crappy experience with a dealer. Every once and a while we'll see a, "What do you like about the MS3?" thread, which usually evolves from a never ending amount of, "My car sucks, I'm selling it!" threads.
I think some people are asking a lot from Mazda with their $21k car that packs a lot of bang for the buck and is pretty well made for the price. Sure, it's had some growing pains, but as a limited run car, do you really expect Mazda to address ALL the issues that have reared their ugly heads? It's cheaper for them to address these on a case by case bases, while denying warranty service when you walk in with mods than to publish multiple TSB's that most of us would take advantage of even if we didn't have the problem. Not to forget that Ford is part of the ultimate decision process.
I've had my 08.5 since May and have put 16k+ miles on it (alot of highway commuting) and I haven't had any problems with it. Yes, there are some rattles in the cold weather, mostly due to the cowl trim by the windshield. Easy fix, but I haven't had the time and energy to deal with it. Other than that, the car feels pretty solid and I don't hear rattles or funny noises from anywhere else in the car. I've had many cars in the past that rattled. I owned two convertibles; a '99 Miata and then an '04 S2000. One was a $24k car with rattles and the other was a $34k car with rattles. Sure, the S2000 had less rattles, but it still had some here and there. The cold weather brings out lots of funny noises from cars. Plastics get hard, fluids get thick, metal contracts, etc... all cars have a rattle of some kind in the winter time unless you're driving a 7-series.