Just a thought and comment on the account signing. I put in a Bitcoin address in the profile when I first signed up or pretty close to then, but that address is nowhere near under my control anymore. I am sure the wallet has nothing in it, but the passphrases or whatever I used on that wallet are long gone. This is going to be true for most users on the forum and the veteran members know this.
The new user has a wallet, online or software and is all proud of the first Bitcoin address and puts it on their profile.
Time passes and those first wallets come and go, as well as the enthusiasm of updating a Bitcoin wallet address on your profile when opening a new one.