I find that kind of weird. What proportion of "edition warriors" see themselves as edition warriors rather than truth-tellers, blunt critics, or otherwise telling it like it is? Wouldn't people see the statement that they aren't edition warriors as validation of their self-image?
I suspect it's more like, Angry Edition Warrior sees himself as tell-it-like-it-is, blunt truth-telling critic. But he's on the front lines of the Edition War, so he sees all the other people as Angry Edition Warriors. (They, of course, see themselves as tell-it-like-it-is, blunt truth-telling critics.) So when Mearls says "You aren't edition warriors," the AEW says, "No, I'm not, but look at all these OTHER guys!"
Basically, I think Mearls just found the same thing Howard Moskowitz did: people don't really know what they want and like. A person may like a certain edition, and argue for that edition and against others on the interwebs. But IMO a lot of times edition wars are less about
editions and more about that particular discussion. Nuance, subtlety, and shades of gray get thrown out as the discussion becomes less about finding common ground and more about proving that other guy
wrong. So the "enemy editions" become represented by their worst aspects turned up to eleven. In
reality, though, people aren't so hardline.