Has anyone in the history of Bitcoin considered FPGA to mine Bitcoin? I wanted to know if it would be something viable.

I guess I am late for this party but I think Discord is not for the common folk and requires hours to understand how it works and free time to use it. I imagine it is something made for those who have nothing to do with their time and besides it is a ground with no rules, easily reached by law enforcement to catch those pedos and it is run by children. Telegram is simpler, faster but also not safe because anything attached to a phone is unsecure. I use jabber for years and had no problem. Using Session in recent years and sometimes checking Dread for insights and business.

Something about that does not feel right.

I can confirm this one is fake. True address and fake WIF.

This happens when you bought or found and old Electrum wallet with balance showing as available. What happens is that such Electrum json file was saved with information regarding a known blockchain transaction that is real and can be seen in Blockchain but as stupid as Electrum is they do not match address to public key and only read the json file and then you see a transaction as valid and even allows you to create a transaction but you can not send it because Electrum does not have the keys to sign the transaction. It does not matter if you have a seed. Such seed does not generate your address with balance and it is only there because it was read from a forged json file. So, this error appears. You do not have the real seed.

This is the famous wallet that would take 2600 years to crack. Everybody has this wallet by this time. I would only believe he is the owner if he can provide 2/3 of the password.