Any way to prove the account is yours?
Ex.: Signed message from an old address
I've seen people contact theymos for account related issues. He won't do anything if you can't prove the account is yours though.
Never used a signed message.
I do have old Bitcoin youtube videos:
2012 (first mining rig)
https://www.youtube.com/watch?v=n-A_NlkGvbM2014 (Hashfast rigs, I posted a lot in the hashfast thread here)
https://www.youtube.com/watch?v=wFuTeDWXiLwI have a lot of old posts where everything shows the account is mine, like me sharing my videos, posting pics of our bitcoin operation, linking to my websites where my Whois adds up.
Would this be enough?
I'll message theymos
maybe, you can try to PM theymos...
you explain all to him.
you give him the link to video...
and if you are lucky, him, will restore your account!!!
good luck!