What kid of a person has an entire year to take off and go sit in a tree? Who would finance such a thing? They need to eat, at least.
Or, to turn it around, imagine what good could have been done if this same person was financed to volunteer at a church or a charity for an entire year. Instead, they decided to go sit in a tree. Selfish idiots.
Earth First, Sierra Club, etc., etc. All supported by the big foundations. Plenty of money in the enviro groups.