There are benefits of both choices I am sure, which will be determined by previous experiences. But these experiences will be determined by how the fish are fished for, who fishes for them and the tactics people employ. To say that that barbless hooks, or barbed for that matter cause more damage than the other is always going to be a matter of opinion. Commercial carp get caught countless times, on some fisheries even several time per day. I would say that such pressure is almost willing damage regardless of the tackle used. I doubt there are any stretches of river in the country that come even close to this. Certainly, where I fish sees nowhere near this amount of pressure so for me it is a little irrelevant. I'm happy with my choice as I haven't experienced some of the things mentioned in this thread. I do my best and feel comfortable with my choices and that's all anyone can do. If things change then I would reflect on these choices.