by posting inflammatory and digressive, extraneous, or off-topic messages
with the intent of provoking readers into displaying emotional responses and normalizing tangential discussion, whether for the troll's amusement or a specific gain.
Plus, what the troll does... I'm pretty sure that disagreeing itself, and posting criticism isn't trolling likely. If I agreed with you, then you're a troll, so is that Anon, 2cross2afflication, and many more..
To say that my main activity is "trolling" is just flat out pathetic. Standing up against false information and warning people of the dangers of a terrible website like this is not trolling.