"Koofal" Impostor Scammed me? - Third scan.

Well guys, this sucks, I've been scammed for the third time... I really do not know how.. Anyways, the first two times I've been scammed, they were when I were buying things, see here:
http://www.sythe.org/report-scammer-archive/1628380-i-think-i-scammed-kevinjrg-e-ski.html

http://www.sythe.org/report-scammer-archive/1611181-genstarj-stole-my-money.html#post12593315

and now this..

So, first I posted here:
http://www.sythe.org/steam-sales/1629215-ejays-steam-shop-cheap-games.html

Because I had some spear games and I needed some money, and then I got a reply, from the account name: Koofal or youskovvv
http://i.imgur.com/ePTzyNN.png
http://i.imgur.com/5rNFe69.png
http://i.imgur.com/T629tIq.png
http://i.imgur.com/YdhOMZB.png
http://i.imgur.com/uVlhoBw.png

I don't know what I should be posted due to me selling, but it's all in the text. I really felt comftible with this whole thing, but there is never a way to tell if the person you trade with are legit, I'm starting to really give up on this and just stick to my 2 traders, and buying games, "Sakura_lea" and "Steamjordan".
Thanks everybody, ask for more information if needed.
And yes, I pissed.

 

When there are imposter scams, all I can really tell you is request a PM from the user before the trade. That way, you know exactly who you're trading with. You can see their vouches and other feedback as well.

Sorry for your loss ejay.