The tag alias #73123 reysi -> frayvuir is pending approval.
Reason:

as per: https://e621.net/artists/23348
artist is now predominantly using frayvuir as their name, rather than reysi.
they are also signing their art with frayvuir, for example in this artwork
An alias would be more accurate to their new name, would serve to associate their old art with their new stuff and would clear up confusion for those sourcing from FurAffinity.