People can't be funny because it's rude. People can't state their frank opinion , because if it's not a carefully constructed argument it's worthless. Anyone who doesn't toe the politeness line is contemptible and boring. And the PC police are always watching.
if matt says nothing on said thread and you disagree with what is discussed then you're quite free to ignore the thing entirely.
"If your point is, "You people are ruining Metafilter. Please for the love of God stop now!" I think you are over reacting."
It's his fault