What i like about GACKT's fans is that member or not, if you're a fan, you're a Dear. he always adresses his fans in his blogs "To all of my DEARS". The only difference is that you are either an official (meaning a member of a fanclub) Dear or not.
i dunno at least that's how it's taken in the fandom. And at some point i believe he takes all of his fans as Dears.
Also i've seen on tumblr some of Namie fans adressing fellow fans as Amuras lol