To be fair, the poster he replied to doesn't either. The only people living in deep poverty in the US are actively avoiding the help that is available to them. It has been argued that the poor in the US have it worse than the poor in Europe, but in neither case are they are in deep poverty.
I'm skeptical of the $1.90 a day number. Those people would be dead. You literally cannot buy enough food to eat with that much money. Since we generally don't see millions of people dying of starvation in the U.S., some part of the equation must be missing.