NS-gates cannot NOT handle 72 hr tix-they can only handle tix for the day untill 4 hrs next morning and then additional days. This differs from the validators on board bus/tram.
Does that mean you have to use the gateline intercom if you have a 72 hr ticket? (I know this is getting off topic really, though, as this is a thread about things you used to see on mainland European railways that you no longer see.)