Here's a hint: if you're e-mailing someone about your new shiny blockchain-based encryption thingy and your hook is "you have a link to your PGP key in birdsite bio, that's not best practice" -- at least have a PGP key for your own e-mail address.
I mean. Uhm.
Also, yes I absolutely have a boilerplate set of questions for these occasions. Not sharing, sorry, don't want make it easy for the blockchain shills.