Restaurants that Serve food in "Black plates" are Red Flag

We've this idea of anything and everything in "black" is aesthetic and cool. I'm not saying it's not cool, but— When restuarants use up Black plates, they have to only put in the least effort in order to clean them. Yes the plates might look "cool" but at the same it's gonna cost life as well. It's a growing trend amongst the restuarants especially cheaper ones and they are getting away with a lot on this. If it's the traditional white plates, we'd be able to see how clean the plates are but with black plates it's not the case and hence they barely have to clean it and we still would never know.