I have a Rapala digital scale too and I always question the weight it shows, mostly because its not what I thought the fish would weigh. But whenever I weigh a dumbbell it is pretty much on the money.
I think the fish gazing photos were started by European carp fishermen. If not, it was definitely Euros.
I think the people who do it think it’s highlighting the fish not the fisherman, but to me, ironically, it comes off as arrogant. I probably wouldn’t mind it as much if the people at least smiled.