Damn it, they really are trying to reinvent what I just mentioned: mailing lists.

nostr:nevent1qvzqqqqqqypzq3svyhng9ld8sv44950j957j9vchdktj7cxumsep9mvvjthc2pjuqythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qy88wumn8ghj7mn0wvhxcmmv9uqzphxjselac8k6n8d2zyqrj3zw3a4g4xe8wja4f9mu2dazx4u48vg0pdvecj