However, they are far closer to Hanson's future Malthusian equilibrium than your average American community; probably they are the closest**. And so they are interesting from the utilitarian welfare point of view.
Looking for a community in modern-day U.S. that is the closest to a Malthusian equilibrium is kind of like looking at the members of a billionaire country club and asking whose circumstances are closest to those of a homeless beggar. Technically, the question might have a well-defined answer, but it won't give you any insight into the life of actual beggars.
Hell, I've lived in circumstances that make Kiryas Joel look like a billionaire country club in comparison, and it would be delusional for me to draw conclusions about Malthusian life based on my experiences.
I'm not sure you understand Malthusian economics very well. A 'subsistence wage' is an arbitrary culturally set wage anywhere above whatever amount is required to not starve to death.
I understand that. (In fact, the insight goes back even before Ricardo and Malthus, at least back to Adam Smith's concept of "the lowest [wage] rate which is consistent with common humanity.")
However, this wage is "culturally set" insofar as people may limit their reproduction because they have a culturally set minimum standard for forming families. Theoretically, it is possible that a wealthy society might be in a Malthusian equilibrium because people would like to reproduce more but have very high minimum standards for per-capita family wealth. (Note that this is distinct from the still largely mysterious reasons for the modern demographic transition.) However, in practice, every historical society stuck in a Malthusian equilibrium has been unspeakably poor by the modern developed world standards, and the future Hansonian uploads would be in an even worse situation, given the incentive to multiply them to use up every bit of the available resources. (As John Derbyshire once quipped, "The past was pretty awful; the future will be far worse. Enjoy!")
Thus, looking for someone in modern-day U.S. whose experience might give you insight into the historical Malthusian life, let alone the Malthusian life of future uploads, really is like looking for that poorest billionaire in a country club when you want insight into the life of beggars.
Theoretically, it is possible that a wealthy society might be in a Malthusian equilibrium because people would like to reproduce more but have very high minimum standards for per-capita family wealth.
This society would not be evolutionarily stable since the members with the lowest standards will reproduce more causing the minimum standard to decrease. This process will continue until it reaches the point where standards are so low that any additional children would simply starve to death.
I was browsing my RSS feed, as one does, and came across a New York Times article, "A Village With the Numbers, Not the Image, of the Poorest Place", about the Satmar Hasidic Jews of Kiryas Joel (NY).
Their interest lies in their extraordinarily high birthrate & population growth, and their poverty - which are connected. From the article:
From Wikipedia:
Robin Hanson has argued that uploaded/emulated minds will establish a new Malthusian/Darwinian equilibrium in "IF UPLOADS COME FIRST: The crack of a future dawn" - an equilibrium in comparison to which our own economy will look like a delusive dreamtime of impossibly unfit and libertine behavior. The demographic transition will not last forever. But despite our own distaste for countless lives living at near-subsistence rather than our own extreme per-capita wealth (see the Repugnant Conclusion), those many lives will be happy ones (even amidst disaster).
So. Are the inhabitants of Kiryas Joel unhappy?