He's not frugal, he is very creative with his accounting. In the post you linked he deducts his medical expenses and food expenses.
Also if you look at the post you linked "Does not include the $30k detached Studio I built." 30k$ is more than a LOT of people gross annually in the U.S. and he claims it doesn't count as an expense which conveniently keeps his budget 30k$ smaller than it in fact was.
According to the U.S Census Bureau "The per capita income for the overall population in 2008 was $26,964; for non-Hispanic Whites, it was $31,313; for Blacks, it was $18,406; for Asians, it was $30,292; and for Hispanics, it was $15,674." which are all less than his 30k$ "hey guys it doesn't count I added a whole new room to my house" creative budget.
Also if you look at the post you linked "Does not include the $30k detached Studio I built." 30k$ is more than a LOT of people gross annually in the U.S. and he claims it doesn't count as an expense which conveniently keeps his budget 30k$ smaller than it in fact was.
According to the U.S Census Bureau "The per capita income for the overall population in 2008 was $26,964; for non-Hispanic Whites, it was $31,313; for Blacks, it was $18,406; for Asians, it was $30,292; and for Hispanics, it was $15,674." which are all less than his 30k$ "hey guys it doesn't count I added a whole new room to my house" creative budget.