ALERT: REPORTING A TRADE SCAM TECNIQUE

Please share,
this guy added me and the following chat ensued:

Shadow_Master: hi dude
ilganzo: yo
ilganzo: wassup
Shadow_Master: do u want to trade games ?
ilganzo: which ones
Shadow_Master: i read that u have BL1, Spec ops and mass effect 3
ilganzo: ye
ilganzo: what do you have
Shadow_Master: what would u give me for AC3 or BL2 key ?
ilganzo: lol so you are a scammer
ilganzo: nice try dude
ilganzo: ^^
ilganzo: 18 games
ilganzo: offering epic games keys
ilganzo: adding me without posting
ilganzo: ^^
ilganzo: you should put more effort into it
Shadow_Master: whats a scammer o.O
ilganzo: lol
ilganzo: gimme ur steamtrade profile
Shadow_Master: I dont have a one i have just watching ..
ilganzo: you know the games i have
ilganzo: do an offer for BL2
Shadow_Master: if u dont interest its ok
ilganzo: which is the only one that interests me
Shadow_Master: ????
ilganzo: (posted my games)
Shadow_Master: sry dude but i think we dont trade
ilganzo: which ones you want for borderlands 2
Shadow_Master: now u want ?!
ilganzo: im curious
ilganzo: tell me
ilganzo: what you want
Shadow_Master: mass effect 3 and spec ops ?
ilganzo: ok
ilganzo: how do we do the exchange?
Shadow_Master: i can sen u not the full key and a picture
ilganzo: ?
ilganzo: you have a key ?
ilganzo: you first man
ilganzo: you have no rep
ilganzo: send me the key, if it is valid i send you mine
ilganzo: always did like this and it always worked
Shadow_Master: no sry dude i cant trust u
ilganzo: lol
ilganzo: how so
ilganzo: what is the problem
Shadow_Master: http://s1.directupload.net/images/130105/8jv7ixa8.jpg
Shadow_Master: u trust me now ?
ilganzo: ok
ilganzo: send me the key then
Shadow_Master: u first
ilganzo: you first
ilganzo: you have no reputation
ShadowMaster: but i have send u a picture right now! --
ilganzo: you first
Shadow_Master: sry dude i think i trade with a other guy
ilganzo: you are a sad person and a sad scammer, im reporting this tecnique in every forum i can get into, you should put more effort
ilganzo: into it
ilganzo: this tecnique is so sad
Shadow_Master: wtf is ur problem ????
Shadow_Master: bye
Shadow_Master is now Offline.

to resume it: he tried to make himself legit sending me this pic http://s1.directupload.net/images/130105/8jv7ixa8.jpg (if he brings it down i will re upload), DONT FALL FOR IT!! He had 18 games already in his library, so many victims have fallen for this, report him to steamrep and block this asshole!
PLEASE KEEP THIS BUMPED, I DONT CARE ABOUT GETTING BANNED, ITS BETTER TO GET A BAN THAN TO HAVE MORE PEOPLE FEELING MISERABLE BEING SCAMMED BY THIS ASSHOLE

his steam profile: http://steamcommunity.com/profiles/76561198069593188/