Not wrong though, they do be the artist

I meant to say they are the *same* artist in the note.

For example: #452538 | Imouto Series | Kiss-loving Mei-chan | 10,587 has the "mm" artist tag while #547096 | Imouto Series | Kiss-loving Mei-chan | 20,261 has the "mmchair" artist tag even though they are clearly the same work but one of them is just longer. I can provide more examples if needed.