Oh come on, sometimes that is justified. It’s silly to broaden the definition of “gamer” to the point where it almost means nothing anymore because of its ambiguity. That’s like looking at one guy who only eats fast food all day, every day and a connoisseur of fine foods and then calling them both gourmets.
Indeed,My dad likes to play solitaire on his laptop and I have an aunt who played farmville, to call either of them a "gamer" would be a hoot.