Wagtail
Horse servant
I am torn because if you can get in the right attitude, then fishing to get them to tie themselves in knots and give the game away can be very entertaining! As long as it's a genuine troll on the hook, of course.
We seem to have a new breed around lately who are using logins created sometimes years before, sometimes with a posting history over many months before it becomes apparent that the story they have built has moved from interesting to impossible. I can't imagine why they get pleasure out of doing so much work!
I think some of them are pure fantasists. The Mr Vet/bsjastar one for example. Wants people to think their life is incredible. I think it is almost a type of mental illness, or they have in fact got a terrible life.