Maybe it's also good netiquette to quit criticizing other people for being lazy and contribute some good threads as well. Seems a whole lot more productive.
After all, don't you realize that someone who just sits there and criticizes is, in fact, being pretty darn lazy? Wouldn't it be a better use of time and energy to write a good thread yourself, rather than speaking so harshly to and about other users, especially new guests who aren't as familiar with the forums?
Call me what you want, but I see the people who do nothing but complain and cut down others without contributing anything positive, not even one kind word for another person, as being a whole lot worse than lazy.