Just post GPG-encrypted messages to USENET. There's always the Mixmaster type-2 remailer network, though its current state seems to be in neglect. It's a sham

Just post GPG-encrypted messages to USENET. There's always the Mixmaster type-2 remailer network, though its current state seems to be in neglect. It's a shame the 90s-era cypherpunks haven't moved on to build more visible tools for protecting privacy,