Dave,
Your clarifications are important. I believe that the posts we all make can and should contain all aspects of experiences, fact and opinion, and I respect the absolute right we have to voice these. It is attacks on the integrity or motives of people who (by nature of having done something) are exposed. I say fire away with observations, critiques, negative reports and the like. Just shy away from trying to ascribe motives of greed or failures of integrity without definate proof.
The challanges we hand each other, the debates and disagreements keep the site alive!