@amcooper They do send bulletins to users via their website, email, and via tweets. Being on Mastodon just broadens their reach. I am totally uninvolved, but from my attempts over the last hour or two to dig to the bottom of this controversy, it seems like CISA hasn't said a word yet about it, and nobody was even mentioning them, other than the initial announcement from the admin of infosec.exchange, until people started posting about de-federating the server because CISA joined.