Have HMG considered the reason-
As Bismark is reputed to have said "governments come and governments go but the bureaucracy is there forever."
Blair wanted to give the UK ID cards and the cradle-to-grave NIR to go with it.
Incidently blocking these kinds of sites is (IIRC) already listed on the list of site CMD's BS laws already cover. Along with "Esoteria" WTF that is (magick & spells I think)