User blog comment:DYBAD/Character Sheet/@comment-26221691-20161013165248/@comment-4867780-20161013210339

This CS was the first made on this Wikia, I only had the basic ideas at the time so I opted for a neutral and flexible name, that would still be clear about the nature of the blog. It was originally created as a singular personal experiment after all, I had no idea it would soon become such a big trend ^ ^

I ended up following the same pattern for later sheets out of simplicity and clarity, and so did most other users at the time ("Character Sheet xx"). As Imouto-tan said, it's only more recently that sheets named after their character became the norm after she popularized the practice.