Changing character name?

[Estellios]

This is only a rumor. It will never happen by doing so it would make a black list pointless.

Characters have a hidden ID sort of thing attached to them for data purposes instead of just the character name, and it can be used by the game to potentially remember who is on your blacklist even if they change their name. Also when Legacy players got to recreate their characters lodestone had a notice on that player's profile saying what their previous name was, so there is that as well.