While I fully appreciate the outrage expressed by the OP, and even got a bit of a giggle (and an unfortunate mental picture of the feces bit), I have to echo
@Intrepid. I certainly cannot speak to these particular individuals, but I think it is important for the forum to acknowledge that we do not know people's full story. Sometimes people do not even know their own. A non-life threatening event, even if it doesn't qualify as "traumatic," can be the straw that breaks the proverbial camel's back. People talk about their daily stress cups getting full...when things have just built up to such an extent that something minor sets off a major incident. Well, there are lifelong stress cups too. And sometimes something totally stupid can unleash inner chaos, like a short loud noise can cause a devastating avalanche when the conditions are just so.
What CAUSED the symptomology is ultimately far less important than coping with and healing the hurt and pain it reflects in the present. We (including me) get obsessive about the WHYs and the WHAT HAPPENEDs and about diagnoses and criteria, etc. We want to categorize things, including ourselves sometimes, to make sense of the world. This is why we have the DSMs and the ICDs and why it is all such a big business.
Nobody likes the idea of a continuum. Or a syndrome. Disorder is nice and neat. Criteria are concrete...seemingly. Until you really dig in. Until you get beyond books and start really looking at individual people.
At some point, causes are important to address in trauma processing, but what is really the beginning of healing is managing symptoms, wherever they come from.
All this is, of course, my quasi-humble opinion.