On cheaprvliving.com you can find many people doing this. Interesting but I'g go stir crazy in my trailer, a van is out of the question.
What's funny is how other perceive them while getting irate if someone tells them that they are homeless, not just full timers going from one boondocking area to another.
Recently I read a article about the NFS cracking down on people abusing the forest by living in them. The rule works out to if you don't have a residential address that you can't spend even a night in a NF because it is illegal to live in them. You must be living there since you have no other home and it applies to even the big rigs since they full time. So the next time a ranger ask where you live and you proudly say your shiny motor home, you may be ticketed and asked to leave.