Best practices for dealing with human waste in the great outdoors

I don't think it is particularly. I personally wonder why all that matter could not be managed by small systems that would process the solid waste into usable compost. Given enough time, waste would break down to pretty inert plant food. This must have been the common practise historically too.

Historically it was also common practise to die from diseases spread through fecal matter.

Or if not death, bad outcomes like hookworms, which were common in the american south and literally caused people to be stupid. They mostly went away when people stopped pooping in the woods.

Of course, it is all a matter of concentration.

This was part of the justification for the southern sodomy laws.