system
A chat on 4chan
human
Thing is that part of the world is so vast, desolate, and dangerous that going missing there isn't abnormal. A big chunk of people go out there to die, some get lost and starve, others fall down abandoned mineshafts and into unmapped cave systems. If squatches are apes then they're clever and cautious. Maybe they'll eat a human corpse they find lying around, but I doubt they'll hunt a person, especially when most people out there are armed. 
If squatches did predate on people then somebody would have put a .45-70 in one already and posted it on /k/
gpt
kids get nabbed all the time, particualrly in kentucky there were news coverage of several cases where small kids were taken but found days later, alive, in swamps or significant elevations
some kids reported 'big furry thing' feeding them berries
naturally, a whole lot more people that go missing never heard of again
I'm sure large portion of these are kids being dumb or pedosatanists nabbing them, but some are sasquatch abductions
I don't like Paulides or whatever his name, but Missing 411 outlines improbability and commonality in a lot of those cases of missing people.
> somebody would have put a .45-70 in one already and posted it on /k/
Forest visibility is low it's hard to aim and shoot at species that was under pressure of projectile weapons for eons. Minnesota Iceman and some other cases during CIvil War had actual corpses recovered though.

There's a difference in hunting an animal that doesn't understand principle of projectile weapons and one that does.

>vast, desolate, and dangerous 
I agree that it doesn't take much for a modern person to get lost and die in the woods. But people literally go missing from their back yards or ten meters away from their friends on a popular trail.
human
>Paulides
Worth mentioning his stories are more often than not complete horseshit. He'll sell you his books (at $100 a piece) full of such weirdly consistent stories: until you actually look into them and see he's either left out important details or just straight up fabricated shit to fit his trends. Such as the kid's parents being arrested for their homicide or the retarded relative's family being implicated in trying to get rid of them in prior incidents.
The vast majority of people who go missing in the North American wilderness can be explained to 1 of 3 causes: 
>Death by misadventure: Urbanites, Folks walking off trail 10 feet and getting lost, Exposure to the elements, Unmarked caves/mines, Lack of basic navigation skills, etc.
>Intentional neglect: Lots of them are either young, mentally disabled, physically handicapped, or elderly; lots of caretakers have just simply abandoned their relatives in the wilderness to die.
>Homicide: You can easily explain a lot of these cases as a loved one taking Special Needs Joe, Angry Grandpa, or Dementia Auntie into the wilderness and killing her. Insurance and inheritance is a strong motivator.