I would guess that if the mountain men in the Pacific Northwest forests are really pretending to be Bigfoot, they would likely stink, too-at least to keep it real and authentic when they are out scaring hikers...
The mountain men around here aren’t smelly or dirty-they buy bath soap/body wash, shampoo, etc-and most of them have adequate rain capture systems to supply a bush-style shower with a black plastic barrel for passive solar water heating-their clothes are clean, too, but old, faded-there are plenty of creeks and a river here to bathe in if you don’t mind really cold water...
Yea, they could have fun dressing up as deer too during hunting season. That would scare the hikers.