They cannot be reasoned with, and the best way of dealing with a troll is to just ignore him/her entirely.
Dont forget to report them immediately.
ADMIN cant keep up with things all the time and if people are not reporting posts then...
"Trolling" can be many things. Simple abuse and distruption for multiple reasons or more complicated things.
I think a definite way to cease alot of trolling and posting of articles that the poster never debates is to insist on the posters comments as they post.