this is the crux of the matter. as a species we’re so careless that if this is a warning or revenge for something, we don’t know what because there are too many options to choose from. this whole thread is an illustration of that. "could it be noise pollution?". "has an influential orca been hit by a rudder?”. "perhaps it's overfishing?", etc. even if it’s none of those things, and this is just a fad, it’s a sorry state of affairs