OP maybe you should add this to your tutorial thread: 
BitcoinMessageTools: https://bitcoinmessage.tools
GitHub: https://github.com/shadowy-pycoder/BitcoinMessageTools
GitHub (CLI): https://github.com/shadowy-pycoder/bitcoin_message_tool
This thread was last updated back in 2018 and OP isn't active on Bitcointalk for several years already. It would be good to check outdated information, fix images and add new stuff, but it won't happen, unless someone will make new version of topic BitcoinMessageTools: https://bitcoinmessage.tools
GitHub: https://github.com/shadowy-pycoder/BitcoinMessageTools
GitHub (CLI): https://github.com/shadowy-pycoder/bitcoin_message_tool