Lets face it, there are lots of reasons for people to be upset when they are traveling. Some can be perfectly legitimate, some completely overblown, and others somewhere in between. I think the bigger issue is how we deal with problems, real or otherwise. The old adage of catching more flies with honey than with vinegar certainly applies to any situation where you are dealing with other people. In most cases this approach works best but every so often, every once in a while, you just have to be more assertive.
With all of that said, lets face it gang, it's unreasonable to expect there won't be some problems sometimes. Fortunately I can say that we've never had what we consider to be a major problem at DVC or any other WDW resort. We have high expectations for our WDW visits and it appears that everyone else does as well. That speaks highly for the Disney organization and how they conduct themselves when they interact with their guests.
Regarding the negative posts, I don't pay much attention to them as I see them as a good way to blow off steam.