When I got the account there is no email in it so I created new email and added it into this profile then later changed my password via email.
Is that even possible? I don't know how the forum functioned back then, but if I'm not mistaken an email address is mandatory for account creation. I'm starting to regret attempting to help you save your account. If this is indeed a hacked account that changes everything.
There are some further things that I find suspicious while you were in Eroiy's Signature campaign. I have no good proof of those accounts being linked but if anyone wants to go through their posting history and try to check with this user then I will send their names in Pm to run a check.
The thought occurred to me that St4yInTh3D4rk's lack of interest in defending the account might be due to having alts to which he could switch his focus. Pm me what you've found and I'll try to make time to dig deeper as well.