@rysiek
The presenter's recommendation "stop using fax" is haphazard, as it neglects to account for how over-zealous anti-spam techniques have destroyed email. Convincing admins to understand & avoid collateral damage or to use PGP is a non-starter. Thick skulls.
I use fax as a protest statement. The crudeness of fax serves to spotlight that recipients aren't doing email right. And fax /just works/.