[awad]

I've seen dot matrix still used at car dealerships so doesn't totally surprise me there'd still be plenty of industry uses

[Scoundreller]

It’s great for printing on carbon copy duplicate/triplicate paper that needs to be signed one time on all copies.

[tomjen3]

I could see piping all syslog critial and above out to a .matrix printer that sits in a locked room as a cheap way to enforce a WORM log of events. With a continious sheet of paper you would only need to access it rarely, and essentially only to change the ribbon and replace the paper source.

[Tor3]

I've seen dot matrix printers used in backrooms of airlines (which I have visited for reporting lost luggage, sometimes). This would mostly be smaller airlines (as the now defunct Berlin Air)