If it is a simple mistake, including an error of judgment, the Wayfarer team will not penalty the Wayfinder game account that made the mistake, even if the wayspot is later edited or deleted.
On the other hand, if there is a clear abuse or violation of the Terms of Service for wayspot, it should be retroactively banned without a statute of limitations.
Usually, it is possible to tell if something is abusive by acquiring knowledge.
But they just can’t do them because they never acquired knowledge of qualified POIs, never learned how to abuse, and of course never read the Niantic Terms of Service.
Normally, they would be able to acquire them if they had serious discussions with good ambassadors, but unfortunately, they probably do not have such discussions.