Yes - I use "troll" to convey the sense that people deliberately look for fights to pick or disinformation to spread. In the recent article about our local climate skeptic Reid Bryson, a lot of the comments on the newspaper webpage were from someone who wasn't local, but whose name popped up all over the place as a "climate skeptic." When I called him out, and the fact that though he signed his name "Dr." he had never published, he stopped posting.