Paulides cherry picks cases, then cherry picks what facts he presents about those cases and then wraps it up in a layer of sensationalistic and supernatural bullshit.
People do weird stuff when they are lost, frightened, hurt, dehydrated and/or hypothermic. He makes a bunch of hay about bodies who are found years later, outside of the search area and a long way from PLS. Well no shit. If they'd sat down in open area close to the PLS, they would have been found pretty quick.
The shame is, there are some legit issues in all this. Is there a lack of record keeping regarding missing people on public land? Yes. Is there anybody that is keeping track of the larger trends and issues with missing people on public land? No. Could we do a much better job of trend analysis and mitigating risk if we analyzed this data as a whole? Absolutely. Is there a non-trivial possibility that there is an undetected serial killer using public lands as a hunting ground? Yes. It is possible.
But Paulides isn't the person who is going to get those questions addressed.