What happened to Rosabelle's Sonic 1 Expanded?

[UnknownUney]

It's something I noticed a few days ago, but didn't bat much of an eye towards it. Now I'm curious towards the matter, why would it be removed? Was it cause of her not liking the current state of the sheet? Was it cause many people used without crediting? I do not know, but does anyone here know? ((If it is cause of private reasons, just say that it is please.))