I also noticed that Real14Hero has changed his email and password, but it could be that he used the account as collateral for a loan, and reset the email and password after paying it back.
It appears he recently received and repaid a loan from
Parodium. It also appears that Real14Hero deleted his post in that thread, but Parodium's reply is still there.
Amount : 0.015
Address : 38SD5ABzyCC5ZGaji4ue2SPvpk4bER9jxE
Repayment : 7 days
Repayment Amount : 0.0165BTC
Collateral : None (As decided)
Approved.
Sending payment in a sec.
http://archive.fo/ph2RKParodium has accepted accounts as collateral in the past.
Loan Amount: 0.12 eth
Repayment amount: 0.145 eth
Repayment date: 13.10.2018 ( maybe earlier )
Reason: personal
Collateral: My account (if required)
ETH address 0x8d02EB339eBaEdFc6c058066cB30Fc9D20aDf14A
Approved.
Payment sent. Please return 0.145 to 0xe2f0Cfd3d6185e9863F84D216af8424E7ACAc39d on or before the 13th.
So, the fact that the email and password of the account have changed recently could be a result of the loan, and really isn't proof of any account sale or getting hacked.