I don't think I ever added a bitcoin address to that account. If there was one can you let me know what it was? I'll look around to see if I can find it to sign a message.
Some other coin addy may work as long as you can sign a message using an unedited post with that addy.
I just take a look at OP's post history, no personal address posted there.
@OP
Did you lose your password, banned from the forum or triggered security measures ?
I see your last three posts are literally just "+1", This is enough reason for Mods to ban or warn your account for spam.
Anyway, I'd be impossible to recover your account without any signed message anyway