I teach teenagers, and I learned years ago that some of them just love to push buttons to see if they can get a rise out of their teachers. Teachers who know how to actively ignore those kinds of button-pushers, have very few behavioral problems in class - we're just not fun. LOL! Teachers who react are constantly dealing with those same kids. They want an audience, and if they can get us to react--they've won. Online bullies are pretty much on that level.