I'm really not sure what i feel, on this.
as a Crayfish keeper, It has occurred to me, especially after a berry.
personally i'm not that worried about the fact of eating, diseased fish.
because, if cooked properly, the should be safe.
I cant find (doesn't mean there aint any though) any diseases, communicable to humans, that aren't rendered safe by cooking.
however that's just "my view", nothing more.
if you live in the UK, Middle Asia or USA there is a fair chance you have already eaten a "tropical hobby fish".
Pangasius, we know it as an Iridescent, or ID Shark. is the most eaten "sea food" in the USA.
and is often offered, in the UK, by greedy shop keepers and sold as cod or haddock. (its about 1/3 the price of cod or haddock)
though i have seen some with it on the Menu.