rsyslog can be configured to send certain kinds of messages to all logged-in users, usually emergencies. These end up in all currently open terminals for me, i.

rsyslog can be configured to send certain kinds of messages to all logged-in users, usually emergencies. These end up in all currently open terminals for me, i.e. each and every tab of every xfce4-terminal I have open at the time. I’d guess it’s mostly a configuration issue and people care less about these things nowadays?