Here're a couple of examples from a page I visited this morning. I find the fact that reasonable adults are passing this off as paranormal phenomena extremely troubling.
1. No trouble in Little China.
The poster (who is also the page admin) claimed this was "A ghost manifestation through steam." Sorry but all I see is steam coming off plates of hot food, to present this as paranormal in any way shape or form strikes me as utterly desperate. This doesn't even require a modicum of research to dismiss, anyone who has eaten a hot meal can dismiss this out of hand. I think this maybe the weakest example of "evidence" for the paranormal I've ever encountered, and that is really saying something. Example two is slightly trickier (and I stress "slightly" here).
2. Blurred Lines.
The proposed ghost on the right side of the photo, this an effect caused by an individual moving while the camera shutter is open, the effect is more extreme the longer the shutter is open or more accurately the slower the shutter speed. Look at the example below and ask yourself how long until this is posted on a Facebook paranormal page as evidence that piano players have "ghost arms"?
3. A mist opportunity.
Perhaps the most ubiquitous form of paranormal photograph on these pages is the mysterious "mist" photograph. We are told by the poster that the below example was taken as he "...stepped onto my patio to take a picture of the snow on my neighbor's tree to send to my sisters in Miami...."
These are just three examples from one page, there are hundreds of pages just the same or very similar, offering "evidence" that is just as weak and easily dismissed. Of course, people are posting contrary views and rational explanations, on these three photos, without exception, these explanations were immediately deleted and the posters blocked.
The individual/individuals doing this may think they are protecting their views and beliefs, but all they are really doing is creating an insular network of believers with a zero-level standard of evidence and critical thinking. All that serves to do is make the views of the whole community seem laughable and unworthy of legitimate investigation.
Until believers start to separate the wheat from the mountains of chaff, very few in mainstream science will believe there was ever any wheat there to begin with....