[TenFour]

What exactly is a troll??

From Wikipedia. https://en.wikipedia.org/wiki/Internet_troll

In Internet slang, a troll is a person who posts inflammatory, insincere, digressive,[1] extraneous, or off-topic messages in an online community (such as social media (Twitter, Facebook, Instagram, etc.), a newsgroup, forum, chat room, online video game, or blog), with the intent of provoking readers into displaying emotional responses,[2] or manipulating others' perception.

But, it is in the eye of the beholder to decide. I have been branded a troll when posting factual information on a topic that others in the forum just don't want to read.