That would make sense for people who consider privacy as single most important measure for communication system. That is not true for everybody. The advantage o

That would make sense for people who consider privacy as single most important measure for communication system. That is not true for everybody. The advantage of OpenPGP is that it does not break any existing advantages of e-mail (except perhaps simplicity) so it is unequivocally better than unencrypted e-mail, while other protocols may have better encryption / privacy, but are worse in other measures. For me, open-standard-ness and federated-ness are two measures that i consider even more important than cryptographic security. So communication protocol that does not satisfy either of these have little value to me, i would rather use e-mail.