Invalid 76561198012662157 wolf4ever

Victim:
|steamID: reaperain
|steamID64: http://steamcommunity.com/profiles/76561198003540692/

Scammer:
|steamID: wolf4ever
|steamID64: http://steamcommunity.com/profiles/76561198012662157

Screenshots:
Full resolution screens are attached.
Last part of the chat:


Middle ish part of the chat:


The individuals steam page and the error that shows when trying to add as friend again to talk things over:


Description: As you can see from the chat the deal was:


Dont Starve + Castle Crashers + Frozen Synapse + HiB 2
for
Dark Souls and Legend of Grimrock
This individual made me give him Dont Starve, Castle Crashers and Frozen Synapse and only gave me Legend of Grimrock - unfortunately I dont have the trade window screen but you can check my inventory history - and THEN he ran as soon as I tried to activate the key. The key yielded a duplicate error. You can check my Steam game list. It isnt there. I couldnt activate it.

More evidence. My inventory history pic is attached.

Thank you for your report, an admin will review shortly

Game Key Scam
Reference:
http://steamcommunity.com/profiles/76561198003540692/games?tab=all

ID Blocks:
Victim:
|steamID: [MG] FiQ
|steamID32: STEAM_0:0:21637482
|steamID64: http://steamcommunity.com/profiles/76561198003540692
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198003540692
Scammer:
|steamID: wolf4ever
|steamID32: STEAM_0:1:26198214
|steamID64: http://steamcommunity.com/profiles/76561198012662157
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198012662157

Additional proof from another user at Steamtrades.com. Same wolf4ever trying to trade games for a fake Dark Souls key:

http://img189.imageshack.us/img189/8098/scmchat2.png

Statement from the user:

"This guy added me to offer his amazon gift card or Dark Souls key for my games, but said he wouldn't go first. When I asked him if he has any rep on trade forums like steamtrades he said he never heard of such a site, and then I found this thread.." Referring to my scammer alert page on Steamtrades.com. Found here:

http://www.steamtrades.com/forum/yARnS/scammer-alert-werewolf2010-or-wolf4ever-on-steam

There is a slim chance that this is not a scammer, depending on how you define "not working". I bought Dark Souls retail and registered it on Steam, downloaded it, but the key was already registered to another account on GFWL. I contacted Microsoft support and they confirmed as much and that the key activated before my copy was shipped. I got a replacement.
Ask the guy to get in contact with Amazon or wherever he got the key to have it replaced.
Maybe you get lucky or I just assume people to be better.

The deceptive nature shown in statements of other users here heavily tip the scale towards him being just another scammer though.

The user wolf4ever has been trade banned by Steam itself. That should be proof enough for you to assign a Scammer label/tag to this user permanently. Thanks.