Secure your account, mate.
I know he was about to scam me and i'll just play along.

Here's the story
He offered me his items in CS:GO games for $180
Here's a capture of his PM's to me.
http://imgur.com/a/LUJXL

Then i checked and contacted the steam account he sent to me.
Turns out that the steam account owner is not him.
Here's the proof.
http://imgur.com/VLpgMWU
http://imgur.com/4yQKDt1

Then he asked me to send btc equal as $180 to him.
http://imgur.com/QmbInsf

Notes: Change your bitcoin address in your profile, it's the scammer's address.

He still PM me even after you PM me lol