Mr Mustard has a new and exciting line of work following the below email
This change in policy was voted through (possibly or probably unwittingly) at the Environment Committee meetings of 18 November 14, 27 January 15 and 19 May 15 (link here) which contained amongst dozens of pages, the following:
Mr Mustard suspects that the 'log book' V5 of his newest client will turn out to be out of date and that will severely limit his options for contesting what has happened but time will tell.
Mr Mustard recommends you go and find your V5 (if you have moved since you purchased your car) and check the address is the current one. Then check your driving licence. You have to tell DVLA twice that you have moved.
If you think you can hide your car forever, forget it, ANPR will almost certainly find you. The better policy is to fight your PCN to the end, not to ignore them.