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If the Wayspot was imported just to be a Power Spot, then you cannot make change into a Pokestop. I wrote about how to tell the difference in this topic. Will a Power Spot be considered a duplicate if nominated?
If you would like to leave the location, we can have a look on the Web Submit map. That map doesn’t display the imports.
Also, many of the imported locations would not meet Wayfarer criteria as a new submission anyway, as explained in the link in that topic. We could discuss whether it could if you would like to tell us what the point of interest is.