When I am purposely fishing powerboat or eggs for trout I am keeping them. What I don't like is gut hooking a trout when I am fishing worms for suckers in the Niangua amd hadn't planned on keeping any. Should listen more to Oneshot who tends to head home with trout when he sucker fishes and bring a cooler regardless. And should start using circle hooks there too.
I was watching an offshore video and they were catching undersized mahi. Every one of thise fish was dropped into the boat, allowed to bounce all over the deck and then thrown back into the water. The whole time that guy us saying how high the mortality rate is for those short fish 😒.
I would also contend that carpeted boat decks aren't a great catch and release surface for those fish either.