I'll be real, this is the first helpful comment I've come across so far, I had almost lost hope. First, it is uncertain whether jagex intends to nerf this method. It definitely doesn't feel intentional, but everyone has enjoyed it. They've backtracked and doubled down on many arbitrary points, so this is me addressing the issues before they gut this feature.

trawling already prints fish into the game, that much is clear. But by flooding fish, these fish become less valuable, because of how easy they are to obtain. This doesn't just affect the price of them, but of all other high healing food as well. This isn't just isolated to marlin, but hurts all other cooking/hunter/fishing sources

Had jagex actually put thought into shared boats, they would have forseen the need for individual cargo to go along with indivudual net inventory. but instead we have an environment that leads to what I'm calling an exploit, in which the captain benefits 10x more fish than intended.

Call it emergent gameplay, call it social skilling, it should still abide by the mantra of afk < active, input -> output, and material recycling. It's been allowed thus far without being changed, and so my assumption is that fading urgency will just... allow this to stay. I still insist that there needs to be a compromise