It was initially used for marriage counseling and other similar things. I could easily see it being useful for such. The biggest problem with it, is that it is a major mood enhancer. If you’re in a good mood, you love every single blade of grass around you. If you’re mad, or feeling depressed, it will magnify those feelings as well.
PTSD? What if you don’t have it? We all have the right to take it up the ass. Doesn’t mean it’s illegal. One should not have to go to prison to try it out.