Declined 76561198074905058 (filthyphil88)

Scammer:
|steamID: filthyphil88
|steamID32: STEAM_0:0:57319665
|steamID64: http://steamcommunity.com/profiles/76561198074905058
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198074905058

This guy is a scammer!
Victim:
|steamID: R3DDS
|steamID32: STEAM_0:0:4939945
|steamID64: http://steamcommunity.com/profiles/76561197970145618
|customURL: http://steamcommunity.com/id/r3dds
|steamrepURL: http://steamrep.com/profiles/76561197970145618

Why he isn't marked still?

He is now.

Another scam attempt from this user: http://i.imgur.com/kP83E.png

Yeah that's good but also sad that I can't get my penumbra back. Not so expensive but anyway...
Thank you Caspian

how to get positive rep here?

Here as in where..?

I need screenshots of your PayPal history and inventory history during the time of this trade.

Archiving report - No additional feedback from the victim.