Locked or Hacked, the thread applies to both. With out providing proof that you are the owner before it was
locked, the Admins will not unlock the account. I do not know of any other methods to provide proof. PGP
might work, but that might prove difficult if you didn't post it in a thread. Are you 100% sure you didn't post
something? When my account was locked in 2015, I had forgotten about posting an address, and a helpful
member found it. Otherwise, I'd suggest searching the forum for alternatives.
EDIT: Here is a thread that you posted an ETH address:
https://bitcointalksearch.org/topic/bounty-ico-rate-ico-ico-market-20-ico-professional-network-2192440
If you can sign a message from that address with your wallet, that will provide proof of ownership.
Edited: one more thing. i can proof my ownership by my email... i can do anything wthat you want to do with my mail.. i can also give old notices which one send me from the forum. i can also told every details about my account, just ask me what you want to know. and i can also give the contact with whome i talked about my account before locked my account. i can also make a convarsion with you and a campaing manager, wiche campaing i'm active for last one month.