Reason: Too common a name. Also, I personally don't know which images under http://e621.net/post/index?tags=rex is actually done by an artist named rex.

Added rex_(toy_story) and rex_(we're_back) for the rex of the respective sources, but the rest still aren't artists regardless as far as I can tell.

for the same of mentioning. you can change what type of tag something is by typing:

• general:

artist:
char:
copyright:

Most people know about all of them, except general XD

that said, done~~ XD