Everyone gets "tramautized" it is dependent on the person to which degree the trauma affects their lives. Some people can live a normal life but for one "trigger" that causes a total meltdown. Some people can be fine within their homes or routines but have trouble outside, and on the flip side some people resent all things before they encountered the trauma. Many can function normally and can improve with therapy.
Some people do want money and free time. Government health care is excellent compared to what most people have. However, we must look at things in a practical way. There are limited funs. Treatment should be based on severity and not blanket clauses. A guy who has PSTD becuase he lost his hand when his buddy died and is afraid of loud noises shouldn't get the same help as someone with PSTD who has separation anxiety, which can be easily treated by therapy. I'm not putting limits on suffering, but rather pointing out that the system which awards a level of health care for "PSTD" should be more aware of the disease and should make levels of care appropriate to the person.
Remember, most of these persons coming back from war are 22-30 yo's looking for a good time, many don't have established families and they want to continue the great American endless youth. If someone presents enough suspicious behavior then she/he should be watched. Not only for the sake of the taxpayer's money but for the sake of protecting a person with a mental problem from erratic, inconsistent behaviour that could harm themselves or others.