The problem with these systems is regardless of the efficacy, they are incredibly difficult to dismantle and easy to re-purpose with the stroke of a pen.

And these "tech-savvy" people are dreaming if they think that access to VPN services from the UK will remain legal in the UK, esp. after a naughty person or two is shown to have used one to commission a crime. It won't happen quickly, but #include frog_boiling.h.