Here is a quote from the victim 'trkh' on reddit:
'His Steam: http://gtm.steamproxy.vip/profiles/76561198063456513

Scam Proof: Told me his M9 was MW Icon and look http://gyazo.com/bcbf3f297d101ee0559b90a609c8b5c2

Here it actually is: http://cloud-3.steampowered.com/ugc/796316693160956154/DDB17F0E1F191B1ED23AE2731228C148BB01CE57/

After the trade when I learned it wasn't MW icon or MW look I contacted him as he told me that if I changed my mind the next day he would trade back. Instead he blocks me, unfriends me and deletes all his comments.
here is basic what happend http://www.reddit.com/r/GlobalOffensiveTrade/comments/21r6oh/q_did_i_fuck_up/ If you look at my steam profile, friends list and my many comments on this thread you will see i'm not a random.

What he scammed off me: http://cloud-4.steampowered.com/ugc/796316693068761388/5A508B7CA593B16516F4F28EEA7C666E95FDAFEB/
This Happened 15 Days Ago and has nothing to do with my CURRENT M9
the worst part is that his inv was already worth 2,000$ plus before he scammed me."
The scammer has been kicked off the group.