I'm going through my posts to check if any don't have artist tags.
The ones that don't, used to have artist tags, but somebody changed the tag type w/o checking if the tag was already in use.

Like this one:
https://e621.net/tag?name=larathelabrat&type=&order=count
(changed from artist to general)

Is there a way to find out who made the change?

edit:
And this one:
https://e621.net/tag?name=junco&type=&order=count
(changed from artist to species)

That's why I used to add "_artist" to all newly created artist names, until people complained that it wasn't necessary.

+1. I wish I could tell when and why people change perfectly good tag types. It's so hard to track down and fix.

Munkelzahn said:
https://e621.net/tag?name=junco&type=&order=count
(changed from artist to species)

I think I remember something like searching Tag History for species:junco to find out who changed it but I always get a time out error.