The character was always refereed to as Piccolo through the entire series, so that's the name of the character. We are in no position to change the name of the character from that used by the series creator. No amount of fanboy screaming is going to change that. And to correct the IP, Piccolo is neither Kami's nephew or brother. He is the embodiment of Kami's "evil" side which was separated from the main body when Kami took over as the guardian of Earth. This is why when Piccolo died, Kami died as well. —'''''' (t | c)