I unfortunately did not set the BTC address in my profile, but I do have access to the original email, ip address, etc... Sent an email to the address provided in the link you gave me.. Hopefully it works out.
Set your Bitcoin address in your profile is useless. Because if your account is compromised, hacker will be able to change it. Take it off or change it.
It only makes sense if you sign a Bitcoin message from an address you control the privaye key, and stake it in the forum. Then it must be quoted by other members. Then if your account is compromised, hacker will only be able to delete your post but it is not enough. Because there are quoted posts by other members.
If you can sign another message from that address, you can prove ownership of your account.