I have eaten a number of them, and they chave been quite tasty..
Especially if they get injured, or incapacitated, its much less wasteful, than tossed the trash.
My first was a large JD that got half its face bitten off in a fight.
Also eaten managuense, and Petenia, among others,
When I was in Viet Nam, I would see lots of gouramis, climbing perch and barbs in the open air markets.
Here in Panama (where I live now), cichlids and large tetras are common dinner fare.
In Argentina and Uruguay, Pacu are cooked and sold in restaurants.
Below fried Cichla (peacock bass) here on Taboga.