You've just made this up. Here's his own manager at Torquay describing him as "one of the best centre-halves I've worked with" when giving him a new contract - https://torquayunited.com/kyle-cameron-signs-new-deal/.
Might start an official NCM fact checking service.
Yes, once, in the play-off game. Because he'd been out injured and they had a settled centre back pairing but were struggling for fit wide options and Gary Johnson thought, rightly as it turned out, that playing Cameron there would cause problems for our rather small right-sided defensive pairing of DKE and Brindley.
But it was very much a one-off, as with his odd appearance at left back. He was a centre back coming through at Newcastle, when out on loan, at Torquay, and now at Notts. To suggest we moved him there is, as I said, completely made up.