I understand where you are coming from as it seems that your product is being knocked, but I actually enjoy the threads on these. Every one of these shows me what someone's symptoms are, what the problem is, and how to fix it. Sort of like a live troubleshooting database. If I have a problem with mine, I come here and look through these to see if someone else did it the same way and how they were supposed to do it. Then again, I've only had one problem once, and that was because I was not turning my HU up enough for the DD-1 to see a signal at the RCA level. Yes, another user error, but hopefully that helps 2 people at once by showing them they may need to turn up their HU some more and that my HU's distortion point can give someone a rough idea of where theirs may distort.
Plus with as many of these that come up as being user error, it only sways confidence in the product for a little bit, and then reinforces it more once the CS comes in and handles the situation.