Steam Scammers

User list is sorted by user ID (oldest first), since Steam nicknames can be changed at any time, however user IDs never change:

Nickname at time of incident	User ID	Reason
Item Authentication Database	76561197964646193	Served as an account for stealing community items under the guise of an authentication system for something called Steam Ticket. A friend lost a Counter Strike: Global Offensive Huntsman Knife \| Scorched to this account, initial trade started by Rikusentai, the Steam Rep mediator ( imposter ) being Prime. This profile was reported to Steam through the profile itself by the friend that got ripped off, however it seems Steam has yet to do anything about it... Chat logs are as follows: Rikusentai chat log Prime chat log Prime/Rikusentai group chat log I asked my friend about the status updates stating he logged in from another computer, he stated that was his doing; prior to that, I feared he gave them his log in details where he stated that wasn't the case, it was him switching devices.
Pyta	76561197999929337	Used exploit to steal card without giving one in return
Ms. Cinnamon	76561198098137812	Used exploit to steal card without giving one in return
FreeGamesFinders[Prize_bot]	76561198158081420	Scamming people through external links claiming giveaways
Prime	76561198334099884	Posed as a Steam Rep for item verification for something called Steam Ticket. A friend lost a Counter Strike: Global Offensive Huntsman Knife \| Scorched to Item Authentication Database, initial trade started by Rikusentai. User was community banned after friend reported the theft of item through his profile. Chat logs are as follows: Rikusentai chat log Prime chat log Prime/Rikusentai group chat log I asked my friend about the status updates stating he logged in from another computer, he stated that was his doing; prior to that, I feared he gave them his log in details where he stated that wasn't the case, it was him switching devices. External information SteamRep
Rikusentai	76561198355303798	Running a trade scam called Steam Ticket over 3 different accounts. A friend lost a Counter Strike: Global Offensive Huntsman Knife \| Scorched to Item Authentication Database, the Steam Rep mediator ( imposter ) being Prime. User profile was set to private after friend reported him through his Steam account. Chat logs are as follows: Rikusentai chat log Prime chat log Prime/Rikusentai group chat log I asked my friend about the status updates stating he logged in from another computer, he stated that was his doing; prior to that, I feared he gave them his log in details where he stated that wasn't the case, it was him switching devices. He must've been notified about this later on, as he changed his display name 10 times in 6 minutes on 1/18/2017 to try & wipe proof of him ever having the listed display name. The URL ID was not changed however, not that it would matter, seeing as users are listed by profile URLs, which can not be changed.

There has been others, however this was all I had readily available when I decided to start this list; it will be updated as more are reported.

Prime

I checked back on the Prime account on the 5th (2 days after the incident) to find out that the account had been reinstated by account number, however the nickname on the account had been changed from PrimeSD to PrimeM (this is why I link by Steam user IDs, not nicknames, because they can't get around hyperlinks to their profile by changing the nickname). When you look at the comments down at the bottom of the page, you'll see the following:

However when you follow that link, you'll find the following:

This brings up the question as to whether bans are done by nickname rather than user ID, as you would think user ID would be the most accurate means to do it. The interesting matter of this is the time the comment was posted, the same day that friend posted a comment on his profile about getting hit by the scam (although details were limited until he gave me the rundown on the 2nd), so likely there were comments about it before I got a chance to speak to that friend about it & publish the details about Steam Ticket.

On another matter, I've been getting a lot of friend invites over Steam lately ever since I warned people about this scam in one of the trading groups I'm in; one thing in common with every single one of those invites, every user sending an invite had Counter Strike: Global Offensive on their account. The invites I would expect are from the scam warning I made in that group, but most of those users had their profiles in languages other than English. In a matter of 6 days, I received 14 friend invites & I expect these are attempted retaliation to the publication of the scam. I know that some are able to steal your account if you allow them on your friend list, others might be attempting to add me simply to respond via comments on my own profile. There is the possibility they may be trying to add me to thank me, but I don't accept invites from people I don't already know, so every invite that has been sent since that was posted in that group has been rejected.

In any case I warn those that are very open about adding new friends (particularly those they don't actually know first), I would suggest you put up a barrier to avoid the possibility of stolen items/accounts, as you're going to regret it later if you don't. I have had my account stolen once in the past, as well as an attempt a couple years later, but they didn't succeed because of Steam Guard via email notifications (the only reason why they succeeded the first time was because they stole a couple of my email accounts at the same time they also stole my Steam & Xfire accounts; they failed to steal the Facebook account because the email account registered to the Facebook account wasn't actually for the domain that it would appear when you looked at it. I got all those accounts back after a week or two (the Steam account taking the longest, later finding out the thief was using a nude mod in Skyrim when I fired it up for the first time & found a screenshot of that save downloaded from Steam Cloud, of course I couldn't load it as I didn't have the mod on my computer). I now have the authenticator on my phone, so it's is HIGHLY unlikely they will be able to steal my account even if they do have my password, however there's still a glitch in the authenticator that allow for theft of items in card trades (upon completion of a badge it would seem) that vALVE still needs to get fixed...

1/6/2017 UPDATE: User got flagged on SteamRep after 2 reports came in on the 3rd from people that also go hit by the same scam as my friend; those reports can be found by clicking on the link in the Additional Info from Administrators section. I also attempted to make a couple reports of my own to Steam (the report on this one being for impersonation of a vALVE employee, which included the details about the successful theft attempt), the other was on the middleman account called Item Authentication Database (naming the scam that was being used, called Steam Ticket).