Demolished - Post Office Privatisation?

I've been exchanging hand-made postcards for many years, pretty much at random - I find one on the mat and send one back by return.. I have a boxfull, some of which have been gently modified by the post office in passing.. Never one quite like this, though (note, I have scuffed the return address deliberately in Photoshop..)
I'm sending one back, hope it arrives cleaner than this..