Accepted 76561198073429299 (ᴺᴿᴳ WAGON.)

Scammer :

|steamID: ᴺᴿᴳ WAGON.
|steamID32: STEAM_0:1:56581785
|steamID64: http://steamcommunity.com/profiles/76561198073429299
|customURL: http://steamcommunity.com/id/4364374373
|steamrepURL: http://steamrep.com/profiles/76561198073429299

Description:

He impersonates someone on your friend list and pretends it's that person's second account, then goes on to try to get you to log into a phising site.

Screenshots:

http://i.imgur.com/JjqsD.jpg
A few minutes after this, he changed his profile to this (note the different custom url):
http://i.imgur.com/UtXTM.jpg

Appearantly, he's the same guy who was reported here: http://forums.steamrep.com/threads/76561198073429299-tf2r-totoro-kun.12437/

The person, who he's impersonating :

|steamID: ៧We Built Our Own Worldۨጕ
|steamID32: STEAM_0:0:22470034
|steamID64: http://steamcommunity.com/profiles/76561198005205796
|customURL: http://steamcommunity.com/id/WeBuiltOurOwnWorld
|steamrepURL: http://steamrep.com/profiles/76561198005205796

Thank you for your report. A steamrep admin will look at this shortly.

Added to notes. Thanks for the report.