Artist says she no longer goes by thewhitedemon. Replacing the tag thewhitedemon with daggerleonelli will contemporize the artist name and prevent tagging confusion in the future.

Well, there is a daggerleonelli tag (for the artist) and a dagger_leonelli tag for the character.

imo, we should alias thewhitedemon -> dagger_leonelli_(artist), and daggerleonelli -> dagger_leonelli_(artist).
The character tag would get changed, not aliased, to dagger_leonelli_(character).

And dagger_(artist) seems to be daggerleonelli as well, so aliasing that too, I guess.