Sorry I am not the best in my native tongue.
Yes punter is the customer.
Basically certain people have two faces one which the customers see and one which the employee's see.
Also there tends to be groups of customers who will never see anything wrong with what they are doing and see the person as some sort of aviation god who can't do anything wrong and its everyone else that is being horrible to said person.
As for the forum its for instructors not private pilots so there aren't so many looking at the threads.