Most likely, these are imported to be Power Spots for Pokemon Go:
I hate that they decided to add these to the nomination map, since they are not truly Wayspots. And since they are not truly Wayspots, they cannot become Pokestops or gyms.
If you find one of these for something that would be eligible to be a true Wayspot, then you can submit it.
A sign that they are imports is that the photo is missing and it has just a placeholder image. But since people can submit photos through edits, that is not always true.