I'm sorry but unless you're buying your fish by the pound, I see no use in weighing a fish. You caught a nice fish, you had a wonderful outing.....what else is there?
Most are hellbent on CPR, Catch, photo and release. So now it should be catch, measure length, girth, weigh, photograph then release?
Folks show pics of fish with the bait still in their mouth (usually for the sponsor's benefit). Due diligence to me would be to get that bait out of there first, then if the fish is still strong....take a pic.
Maybe I'm just getting old eh?