I try to be civil in debates on this and other topics as well, but sometimes bluntness is necessary. That post you are talking about wasn't even to you, it was to someone who himself is very blunt (in general) so I figured he has a thick skin. YOU took it personally even though it wasn't even posted to you.
But as Kathy said, it's a true statement. I mean, you ARE eating a carcass, a dead body. Yes, I know it sounds bad, but I really believe that sometimes euphemisms are a way of hiding truth from people.
For example, in the abortion debate, when people say they are "pro-choice" which is a euphemism for supporting the so-called "right" to kill a preborn baby.
Sometimes it's good to challenge euphemisms, and that is exactly what the word meat is, it sounds nice because most people don't connect it with the animal they are eating.