I had no idea how staking worked when I posted those addresses. They were all linked to my blockchain wallet, and I found out that because they were "read only", I could not stake a message with them. However, the address that starts with "12v..." was my armory wallet, and those funds I have been locked out for quite some time now, because Armory is a real bitch.

I know that and have a more better and easy method than this to get private keys from blockchain.com. You just need to set a PassPhrase to your wallet on the blockchain.com. Put you're pass phrase on BIP 39 Mnemonic Code and you will easily get private keys to all the BTC address linked with your blockchain.com wallet and later you can sign a message with the Private Keys for sure. Hope this helps you.

This is the only account that I use. That "accounts connected" thread was opened AFTER I had already lost my account. (My guess is that some website sold off all the hacked inactive accounts). The only proof I have is that I still use my awesome31312 gmail account. Literally any other forum would let you use your email to recover an account but it's w/e. I'm over it.

Also, I'm really sorry I brought this up again. I didn't follow the right protocol to account recovery, I admit. It was wrong of me to even post about it here.