Bit harsh there mate. Stationed at LHR for eleven years? Shows!
I'm just back from Glasgow where the Police were courteous and friendly as were the BAA Security chaps. No problems taking pictures at the fence or the gates. Appreciated.
We have a good relationship with the airport authority and so long as we don't park at the crash gates or damage the fence, they seem happy enough to have us about. If I did see anyone behaving suspiciously, I would phone the Police as would any of my other "spotter" friends.
Let's be honest, the link between unnecessary harassment of aircrew in search is not directly linked to plane spotters!
Also there are I'm sure a number of your colleagues in ATC who would disagree with such bitterness I'm sure.