Hi everyone,
My opinion about extracrew is that it is indeed a great idea, particularly nowadays when all of us work so much and have lost so many "old privileges". On the other hand I don't think it poses any risks to safety or security, firstly because any pilot asking for a ride must have passed all security screenings at the airport (any airport), and secondly, because extracrew does not mean a ride inside the cockpit. In fact, if anything, having a extra pilot or cabin crew on board could very well increase safety should any incident happen during the flight.
I would like to see many other airlines around Europe and indeed everywhere, embracing the figure of extracrew and thus increasing the strength and the links between the flying community.
Good flights to everybody!