Just to note about the post in the OP, r3wt gave me his account in exchange for a 0.02BTC loan and he repaid 0.028BTC tomorrow (which seemed strange as it wasn't due for 2 weeks). Originally the loan was supposed to be private, but apparently he left me a review
There was never a deal for me to purchase the account, I had the login briefly but he had full control of the account since 8th June.
https://bitcointalksearch.org/topic/--227023Chatlog
[09:46:19] r3wt: hi
[09:46:22] anoncoward: sup
[09:55:01] anoncoward: so you are looking for a loan?
[09:55:09] anoncoward: like i said your account isn't very valuable, I can do 0.02BTC if you really need it, but I can't do 3BTC
[09:58:25] r3wt: um...well I need more BTC than that to pay to namecheap
[09:59:00] r3wt: I can give you my forum account, WoW account, my email address, my eBay account, verified PayPal and a 3 letter domain as collateral for a 3BTC loan
[10:09:17] anoncoward: look dude, your shit is worthless and not worth near 3BTC and maybe even hacked. If you want a loan my offer is 0.02BTC for your forum account, please don't waste my time do you want it or not?
[10:09:29] r3wt: how long do I have to repay?
[10:09:39] anoncoward: as long as you need, interest is 20%/week
[10:09:59] r3wt: OK I am interested, can I have the 0.02BTC for 2 weeks ill pay you real soon i'm mining gldcoin and can pay you in the next few days
[10:10:19] anoncoward: OK, 0.02BTC for 2 weeks repay 0.028BTC
[10:10:42] anoncoward: repay address I need your account info first and I will have to change the password and email address, if you scam me i will dox you and you won't like what happens then
[10:11:12] r3wt: password has been set to
[10:11:23] r3wt: did it work? here is my address
[10:14:34] r3wt: did it work? here is my address
[10:19:48] r3wt: hello? send me the BTC or give me back my account!!!! I'm opening a scammer thread now
[10:20:36] anoncoward: sorry for the delay, BTC has been sent
[13:10:07] r3wt: Received thx, I should have most of it repaid in the next few days
How does that work? You give him full control of his account even though he is using it as collateral? Doesn't make much sense to me.
It seems to me that if someone's account were being used as collateral on a loan, the loan issuer would have changed the password once they received possession of it as collateral. Otherwise, what is stopping the account owner from just changing the password and keeping the loan.