That is not what I would call a troll at all. What you describe is just someone that is disgruntled or angry, misinformed or not, they are actually battling for something..

A Troll to me is just someone that is having fun. A troll gets their kicks and laughs by posting crazy stuff just to get a rise out of people or piss people off.. Trolls often larp as something that will aggravate users just for fun.
Like you could go to a gun forum larping as a leftist just to get them all riled up and waste their time.
You could go to a Mercedes forum bitching about your car (that you don't even have) always breaking down and tell them why your Honda is better..
Or you could post about Bcash on this forum. Or just pretend you are an idiot asking stupid questions to frustrate others trying to explain to you and waste all their time..

Here is a good troll to read and lol  bitcointalk.org/index.php?topic=1376986
ManyProofs - That is a troll..

I'm trying to remember this other hilarious troll here..
He is a bald guy and does youtube videos and trolls anti-bitcoin here but is very code-smart.. Who was he?