Post incorrectly removed from public gallery by moderator

I posted pictures of a painting, made by an SL artist in SL. I showed a close up of the painting, and also showed a zoomed out photo of the painting in my SL home. This clearly is SL content. But, the moderator removed it from the public gallery because they felt it wasn’t “SL content” … how does that make any sense? It’s literally a picture in SL of artwork created in SL.