andy-hughes,
I have asked before and received no reply so I will ask you directly.
What is your definition of a Troll?
This is how most dictionary's describe trolling.
"Trolling is when someone post or comments online to deliberately upset others."
Why do you think gulliver is not doing that?
I believe gulliver delights in schadenfreude and uses this site to achieve it, I also think this site shouldn't facilitate in his obsession. We don't know how many people have left Answerbank because of him but I'm pretty certain nobody has joined because he posts here.
In other words he is detrimental to this site yet seems to be immune to
Site Rules.