@TwigNZ, All I'm saying is that there are problems with both versions here and the only way to get perfect statistics is to only log caches that are at the posted coordinates. :) As I said, you don't really need to check peoples highest elevation-caches, if you use the PGC-script the elevation is at the cachepage. If I'm trying to solve a mystery and I see that it's much higher than "normal elevations" in my area, I now have many "free numbers" in the coordinates of my solution and probably just need to figure out the last few numbers of the coordinates. That can make a puzzle much easier.
Even if it's a stretch in most countries it wouldn't be fair to the CO of the few caches affected to throw them under the bus and sure, the elevation is probably the least concern when it comes to these spoiler-problem, but of course country/region/county, distances and so on should be treated the same and now there is a bigger problem.
I assume you understand that your plan just makes you a part of the problem so I'm not gonna argue that part.