VPNs
Firstly from times when I work with only "slightly" tech people it seems VPNs are a fairly well known solution for general piracy, so there's no reason why they wouldn't think to put them to use for porn. As this is rolled out I imagine the knowledge only spread; soon every child in the playground will be using their mates dad's VPN for their porn needs (because what 14 year old can afford a decent VPN?).
Combine this with the prevalence of Tor for the procurement of all ones black market pharmaceutical needs (again, even amongst by people who work far from the tech sector) and soon every last one of us will look like a terrorist as far as GCHQ is concerned. So many of their potential employees will have used one or both of these things it will be literally impossible for them to recruit enough people to do the spying.
Biting the hand that feeds IT
