In Susan's defence, I am sure that in her mind she was being some sort of "investigative reporter" who was finding out facts that would affect the well-being of the village. Why should she care about Bridge Farm's confidentiality; whistle-blowing is more important.
She was a twit not to do it anonymously, though - she must realise that she could put her job at risk.
The Freddie thing was quite fun but they did over-egg the pudding a bit: drink, drugs, popping his cherry, piercing and spending all his money. Was there talk of a tattoo, too?
I think that Freddie is going to wangle some money out of the Trust Fund and go travelling.