We can't even make blacking out essential safety equipment like headlights and tail lights illegal, apparently a driver's personality and style should come before functional lights.
North America. Very common on sports cars or with people who like to modify their cars. They do still light up when the bulb is on although not as bright. My bigger issue is that light won't reflect off blacked out lights the same way it does off a regular tail light. It is a massive safety hazard but "my freedom" seems to be a valid reason for it.