The tag alias #56950 yggiiggy -> speccychicken has been approved.

Reason: speccy as well

Not sure if there are any other names to consolidate, but here are a couple relevant links to consider

https://www.furaffinity.net/user/yggiiggy/
https://twitter.com/SpeccyChicken

EDIT: The tag alias yggiiggy -> speccychicken (forum #330620) has been approved by @bitWolfy.

Not too sure about speccy since it's a common insult towards somebody who wears glasses and it's apparently software, but it does seem like it's only ever been used to refer to this artist.