A lot of fish in the hobby are food in their homelands. I don't think much about cooking something like Bluegill, which are very numerous here, but someone in the UK, or Australia would cry over me eating such a "rare" fish there.
My alltime favorite fish, the Piranha is eaten by the locals of the Amazon River, Clown Knives, and catfish are all eaten too. Different cultures eat different things. Indians hold cows as sacred beings, here we eat them like it's going out of style! I'm sure that's a culture shock for them when they visit or move here!!!