Hi there, a few days ago you changed a template that was categorizing users as Characters. May I ask which template you edited? Whatever it was, it got rid of most users from Characters, but some remained. The Template:Character still has Characters as a default category.
I watched the episode Gem Glow again and noticed that his gem glowed immediately after he chanted "SO GOOD!" both times (as verified by the Gem Glow/transcript). I know this is still speculation, but it's the only thing those two events have in common, just as the Laser Light Cannon was activated with the words "Hot dogs," as observed by Garnet.