Accepted 76561198065713150 (Tf2 Keys For Runescape Gold)

Scammer:
steamID: Tf2 Keys For Runescape Gold
steamID32: STEAM_0:0:52723711
steamID64: http://steamcommunity.com/profiles/76561198065713150
customURL:
steamrepURL: http://steamrep.com/profiles/76561198065713150

Screenshots:
1. http://puu.sh/18q63 (fake repper's profile)
2. http://puu.sh/18q7j (TF2OP trade)
3. http://puu.sh/18q7J (fake repper's offer on TF2OP)
4. http://puu.sh/18q5G (posting fake rep on my wall)

Description:
I really don't know what to think of this. I had a thread open on TF2OP about buying botkiller weapons (see screeshot 2).
Tf2 Keys For Runescape Gold offers me a Tin-1000 hat, but I closed his offer since I wasnt interested (see screenshot 3). Shortly afterwards, he adds me on steam. By the time I accept the friend request, he is already off line, and I went to bed. When I wake up I see that he had posted a + rep post on my wall (see screenshot 4). At no point did we every speak, interact, or trade. Idk why he gave me a plus rep post. It makes it seem like he just gives +rep to everyone, which circumvents the reason we have the rep system.

Thanks for your help.

Marking now, thanks for the report.