Yes, I think fraud should be denounced at every turn. Fraud being taking advantage of people by lying. To be clear, I don't consider telling children Santa brings presents to be fraud. I don't follow the part about Victorian rationalists and how it pertains to this at all.
I don't want to get rid of fanciful things either. The world is full of cool fanciful things. But this photographer is outright lying by stating she doesn't know why the photos come out like they do. There's no wink and a nod for those in the know. This has no relation to novels or storytelling at all.
No, people will be doing cool things with cameras even without the spiritualists. If I really wanted to I could just make those photos myself.
Yes, all photography is an illusion in some sense. Of course nobody denounces all photography.
Nobody's wants you to stop dancing unless you're claiming your dance will heal the sick for $50.00 a pop.
Summary: The photos are cool. I am very turned off by the photographers "Oh, who knows?" attitude when she DOES know. It provides support for belief when she knows there is nothing special about them. I don't totally dismiss the possibility of supernatural things, but want evidence before I believe and these are not it.
Also, nobody's shrieking. I like the chance to discuss things like this.