Well, for one thing- Scowling Dragon tends to rant about how stupid the characters are and how they're unrealistic, which always has the subtext of "I'm the only one who sees this!"

You can critique it all you like, but you need to make sure that you understand that our position of enjoying the comic is just as valid as yours in disliking it or whatever, so that the discussion can be understood on level terms, not so it's "I am superior to you because X and this is why".