In bad news, the PGP madness will never end :(
I'm a Debian Developer and it's our key tool for nearly everything. New password? Send a GPG signed message, get a GPG encrypted reply.
Uploading to the archive? Sign the source with gpg then push. The new hotness we've been arguing over is gpg signing git commits as a method of release 😬 .
To become a DD, you need 2 signatures on your key from active DDs, because ~web of trust~.
My key expired in September and until I uploaded an extended version (and then keyring team accepted it) I was locked out of contributing. It lasted for a month.
My statement on GPG at a recent debconf was "It's a fucking nightmare" and got general agreement from a lot of project veterans.
In short:
aaaaAAAAAAAAAAA