What is a Troll?
Wikipedia defines a troll as "someone who posts controversial, inflammatory, extraneous, or off-topic messages in an online community, such as an online discussion forum, chat room or blog, with the primary intent of provoking other users into an emotional response or of otherwise disrupting normal on-topic discussion"
By this definition a Troll does not need to be a new 'fly by night' member of a forum but could also be a well established person. I dare say we have a Troll on this site who just goes on and on and on. This Troll seems to enjoy the excitement of calling out the word 'repost' just to see the reaction she can get.
As much as we want the Troll to go away we keep feeding it. But then it demands to be fed! Because with every vid posted the Troll goes searching for decaying matter to feed on. And she searches until she finds it. She then screams out her feeding cry "repost repost repost" and we all start feeding her. There is the big smile from ear to ear as she dines on all the attention. All the while lurking and looking for the next meal, another repost. And such a glutton because there is never enough attention. The more she dines on the negativity the more she eats. Like a dog eating the prime rib until getting sick and then starting all over.
How apropos this troll picks a flightless bird as her avatar.