You've mistaken level headed people who don't take well to tasteless and/or stupid people as trolls. Given you have quite a tasteful car and don't seem to have exhibited much in the way of stupidity, that might be why you haven't seen any 'trolling'.

Nice car, and welcome

So serious question, then... I do want to take it out on the track eventually, but would probably feel safer if I knew a bit more about how to handle the car better. Does anybody recommend doing any driver courses? Or do I just track it and get a feel for it so to speak.

RAC days are good for learning.
Skid pan for the lower speed stuff and long track for the higher speed.