I just noticed how much tag count that it's gotten. Is there an artist named after a FF13 character?

No. It's from an error that combined the character with the fang is in a tooth.

I've always wondered that myself. Lol

known issue. basically at some point in the past someone aliased "fang" to "oerba_yun_fang", so every "fang" (as in tooth) tag got replaced with "oerba_yun_fang" (as in the character). so now there's a bunch of incorrect "oerba_yun_fang" tags that no one has really bothered fixing.

because tagging is a bitch and nobody wants to do it.

There's a other problems that come from aliases.

rule34.xxx/index.php?page...;id=3193&pid=90#62912

That Fang problem was fixed once, but then future post causes there to be more mix up.