BTC Core and I believe other some wallets as well have have this option to add label and message while transacting.
  1. Do you use it all?
  2. How do you use it?
  3. What's the best usage of those?
  1. Mostly
  2. I always put this message: "fuck the banks and govs"
  3. I like how Blixt wallet you can attach also a payer name besides the message. Is handy when you want to send a donation and attach a name.
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