Not to be mistaken for the common internet troll, the flamebaiter will post articles and comments that are unnecessarily provocative or offensive in order to attract traffic.
Many forums have died over the years as they started to self-radicalize. As the forum attracts people who think alike, and start to repel dissenting voices, the participants get increasingly convinced that the forums ideas represent the true order of things.
Every active participant, in almost any blog or forum, has an agenda. The most honest thing, in my opinion, is to state your agenda clearly. That puts your posts in the correct context.