If you define a troll as someone who contributes nothing, then I guess I can't disagree with you. Todd's definition was a bit broader, though, and seemed to in

If you define a troll as someone who contributes nothing, then I guess I can't disagree with you. Todd's definition was a bit broader, though, and seemed to include those who expressed a negative opinion in a harsh way. Of course, the word has as at least as many definitions as there are online communities. The post could have easily been "Negative outliers are not trolls!"