SCAMMER. We were trading my State of Decay: YOSE (steam gift) for his Killing Floor 2 (humble key). First (and hopefully last) time I've been scammed, and must say I'm surprised. Below are consecutive screenshots of our chats, the first 8 are of us discussing a trade, and the final 3 show him confirming that he's received my steam gift, says he is going to reveal the steam key (to send to me), and then just removes and blocks me.
DISCUSSION OF TRADE (before scam)
https://imgur.com/a/IaaxwZE
https://imgur.com/a/b1tArGU
https://imgur.com/a/R0RR0wr
https://imgur.com/a/hCx9vKX
https://imgur.com/a/4GiwMJL
https://imgur.com/a/UDX8zHP
https://imgur.com/a/UT8Kr7r
https://imgur.com/a/CMrKP0X
WHERE HE SCAMS ME
https://imgur.com/a/H5aorKa
https://imgur.com/a/sNmofhq
https://imgur.com/a/wG6abeN
UPDATE - He has privated his profile and changed both profile name and picture. Additionally, he has changed his custom URL to end in "areyouseriousdumb", I've underlined it below :)
https://imgur.com/a/lGJWO3l
UPDATE #2 - Here is his permalink:
https://imgur.com/a/lRo35Qz
Update #3 - About 12 hours after scamming, he unblocked and readded me. He also changed his name and profile picture back, permalink matches the one above and is shown here: https://imgur.com/a/9WvHZyn
He wrote a review on my steamtrades profile, appearing fairly remorseful. I decided to give him another chance to come clean, but when I added him he insisted that I must give him another copy of State of Decay (which I have) for the Killing Floor 2 game he owed me. Furthermore, he attempted to bribe me to get me to remove this negative review. Below is his confession:
https://imgur.com/a/eGsGdaW
Here's the link to it: https://www.steamtrades.com/user/76561198267282883#4S0Ty
+rep enjoy your game :)