I'm not expecting customer satisfaction or Karl to change his posts by way of my posting here. There's a difference.
But yet the "Feedback channel" is available to you. Negative or otherwise.
You mean a Feedback channel that is routed to /dev.null (ie: Is Bit Bucketed)? Any Feedback channel whose input is not visible to those using it is simple to ignore or claim that that your input is unique and not being made by others. A Blog at least reflects what is being said and unless additional additions are forbidden (as is the case here) or negative remarks are removed shows what has been said about an issue.