The tag alias #56807 kelly_d -> kelly_(delta.dynamics) has been rejected.

Reason: They are the same character. But kelly_(delta.dynamics) is less confusing.

EDIT: The tag alias kelly_d -> kelly_(delta.dynamics) (forum #329471) has been rejected by @bitWolfy.

I took the liberty of changing the remaining posts myself. I'd be against an alias because "Kelly D" could potentially refer to several other characters.

In the future, you can use the update script through a Bulk Update Request to edit all posts with a certain tag without making the tag itself unusable.