I didn't read the post in question but I'd have mentioned that at the outset if you didn't. We all have things that can set us off and it saddens me to hear about this.
A year ago, one girl who I used to teach piano to in school gave a presentation for her English GCSE about the pressures on young women to look good all of the time, from her viewpoint that it shouldn't matter. She got booed by a couple of brain dead morons in her class but ended up having detention for calling them stupid f@ckers.