Disclaimer

The guy is a KNOWN Account Thief, posing as a VAC Anti-Banner for the sole purpose of stealing passwords. I invited him knowing this since I was bored, and had some fun stringing him along, wasting his time (Don't worry - I didn't send him any money :p)
This guy has been reported by at least 15 separate people, and remains unbanned on Steam.

His past Steam aliases

Never tell your password to anyone.
oLLi: I sell a steam account for 25 Paysayfe card or Pay pal the account have 9 games
Reelix: Seriously?
Reelix: Sounds good - What games?
oLLi: CSS,CS1.6,MW1,MW2,HL2,HL2 ep 1u.2,HL2 Deathmatch HL2 Lost coast
Reelix: Oooh - MW2 - Can I get your e-mail so we can speak there? Have Paypal funds there
oLLi: kasten.peters@web.de is my E-MAil
Reelix: Ok - Hold
oLLi: ok
Reelix: Looks good - I'm ready to buy - Can you verify you're a real seller?
oLLi: ok mom Please
Reelix: Ok
oLLi: I make a Screenshot of my Pay Pal account
Reelix: Ok
oLLi: or can you buy with PaySayfeCard?
Reelix: Only PayPal :(
oLLi: ok
oLLi: :)
Reelix: That fine?
oLLi: jes:)
Reelix: :)
Reelix: Any games you can gift be before I buy that I can start downloading? :)
oLLi: my screen Programm bugs sorry
oLLi: NO Sorry
Reelix: Ok, np
oLLi: send me the money and i send you the ACC details
oLLi: :)
Reelix: paypal address?
Reelix: And can you send screenshot of games list to prove its real games?
oLLi: http://www.imagebanana.com/view/t19y7oml/Unbenannt.JPG
oLLi: hir is the paypal screen
oLLi: +here
Reelix: Ok - I can send now?
oLLi: sorry this is the e-mail sorry schmittcedric@web.de
Reelix: Np
oLLi: sorry :)
Reelix: What about the other e-mail?
oLLi: this is Frrm a Friend
oLLi: sorry :)
Reelix: Aaah, ok - Your friend nearly got the money - Lol
oLLi: :)
oLLi: please send the money to schmittcedric@web.de
oLLi: :)
Reelix: Sending - Please hold
oLLi: OK
Reelix: Gah - Paypal slow >_> Hold..
oLLi: ok
oLLi: :)
Reelix: Sent - You can check
oLLi: The meney is not by me Please wait a moment
Reelix: Nice Avatar - Do you work for Valve? :D
oLLi: :)
Reelix: Ok - Will do
oLLi: no
oLLi: :)
oLLi: I like Valve
oLLi: :)=
Reelix: :D
Reelix: You should have e-mail confirmation?
oLLi: mom I watch
Reelix: Ok
oLLi: no
Reelix: ?
Reelix: Should be there soon :<
oLLi: I send you the acc datas when i have the money
Reelix: Ok - Ill wait
oLLi: :)
oLLi: it may take up to 2 hours
Reelix: Ok - No problem
oLLi: <3
Reelix: :)
oLLi: ok I'm in 2h back ok
oLLi: ?
Reelix: Ok - Ill be here
oLLi: OK
oLLi: :)
Reelix: :)

Proof 1
Proof 2
Proof 3
Proof 4

His profile for the bored: !!!SCAMMER WARNING!!!
Remember - He is a SCAMMER - DO NOT BELIEVE ANYTHING HE HAS TO SAY!!!

Part 2 (He now tries to Trojan me)

oLLi: I have a CSS Update Would you have it?
Reelix: No - That's fine :p
oLLi: a grafik patch
oLLi: and bug patch
Reelix: I can just download through Steam :)
oLLi: it is better than that of the steam, I also had the really good
oLLi: :)
Reelix: I don't want to get VAC banned, so I'm fine :p
oLLi: this is not a hack and you will not VAC banned
oLLi: :)
Reelix: Sure - Do you have a download link?
oLLi: I and my friends use the for about a year and we were not VAC banned
oLLi: I will send him to you if you have the account and I had the money:)
Reelix: :p
oLLi: The patch is realy good I like the Patch ;)
Reelix: :D
oLLi: OK i send you the Link From the Patch
oLLi: I have removed the link so others dont get pwned
oLLi: download and start the exe.
Reelix: Ok
oLLi: than wait
oLLi: :)
oLLi: Have you done it?
oLLi: ??
oLLi: :=)
Reelix: Just had to wait a few seconds - Downloading now
oLLi: you must Stop your anti-Virus Programm otherwise it is not Work :) But there is no virus you can trust me;)
Reelix: Ok
oLLi: :)
oLLi: are you ready?
Reelix: Yes
oLLi: ok stop your antivir and Click on the exe.
oLLi: :)
Reelix: I did
oLLi: what happened?
Reelix: Nothing :/
Reelix: Don't I need CS first?
oLLi: no
oLLi: have you turned off your anti-virus?
Reelix: Yes
oLLi: ok
oLLi: ...
oLLi: mom
Reelix: Ok
oLLi: ok restart steam:) Log out and in than it's work
oLLi: :)
oLLi: So to re-enter the password:)
Reelix: Ok - Will do - Brb

Image 1
Image 2

I didn't actually run the app, so am just sorta saying it did nothing. Gawd - How gullible do people have to be to follow this o_O

Part 3

I quit Steam, and re-opened Steam, which auto-logged me back in (Use the 'Remember Password' option kids :D)

Never tell your password to anyone.
Reelix: Back
Reelix: Just relogged
oLLi: ok
Reelix: Sorry I took so long - Forgot to save my password, so had to retype >_>
oLLi: ok
oLLi: :)
oLLi is now Offline.

He then logged offline, having gotten the money, and trojaned his 'Victim' - Although more likely because macea10 notified him of this thread...