While I understand the frustration of the excessive rudeness, etc. in regards to WAU, some of the complaints (especially those regarding the use of an embedded IE) are justified.
If someone wants to offer a "free" product or service and asks for feedback, they should expect some negative feedback. If they can't handle it with grace, then they probably shouldn't offer the product/service.
I appreciate the work that everyone does. But if I find a bug/issue or have concern, I'm going to voice it. That doesn't negate anyone's hard work.