I am sure we all know this already, however I have got slack with it over the last few years, covering/hiding numbers plates in pictures of the cars on the forum.
I had a fix penalty notice through for 74 in a 30, in West Brom, which is nowhere near where I live, it was a MG ZS with my old reg, and it was dated just before I sold it. So I assume the reg was taken either from a forum, or from the pistonheads advert.
Its all sorted now, but servers as a nice little reminder to everyone out there who post pictures on public forums.