What rubs me is the deletion of approved waymarks that still meet the criteria how its written. The officers of the category were unaware based on the requirements that they were approving waymarks that didn't meet the intent of the category. The forums are a place to receive feedback on categories as are the types of waymarks that are being posted. In the categories that I lead or am an officer of my experience is that we've corrected areas of confusion and ambiguity rather than deleting or declining waymarks to leave the community guessing on what fits or doesn't fit and which are required and optional variables.
Intent versus impact seems to be misaligned here. If all of us aren't meeting your intent you need to revise the category and make it clear what you are looking for. (And leave old waymarks alone.) You need to be as clear as possible so that others outside the geographical areas of highest waymarking participation can understand what you are getting at. That is if it is not clear to those of us whose first language is English, its not going to be clear to others.
Perhaps, as I suggested previously its time to create a category that meets your intent - not one that we have been documenting to. If others have passed by sculptures that may have met the category requirements but they weren't sure and passed them by that too speaks volumes.