I have mixed feelings on this trend. On one side, I'm glad people are able to make it work when there are no other options. On the other side, I see some people taking advantage of land meant for everyone's enjoyment to the point others can't enjoy it anymore.
I also wonder about a double standard. 7 people living in a small (under 1000sq ft) house in an affordable neighborhood are considered white trash or "scum" by default, but 7 people living in an RV on public lands are now being applauded.
It just seems that we are condemning the middle ground these days - either you go huge or you go micro, but the affordable midsize is being eliminated and is looked down upon.