Not only is that the same bike but it's had a lot of work done to it.
I rekon the guy posted it up , got no interest and stripped and rebuilt it forgetting that the advert was still running.
The frame has been resprayed , the shock looks to have been stripped and cleaned up ect.
Check the rims and spokes.
If you can buy something to clean wheels/shocks up that good , in a can , where can I get some.