I completely agree with pps disdain for labels like empath. I believe usually people who claim to be that have suffered lots of abuse and were trained to be intune with their abusers mannerisms so as to avoid further abuse. They haven't healed from that yet and are perhaps more sensitive to picking up things like micro facial expressions from others that give away their mindset. And more reactive to it. Life living in constant fight or flight is probably draining. But requires therapy not magical labels.
However, every time people on here discuss recognition of narcissists, someone goes "ok but only professionals can diagnose'. No one is talking about diagnosing!
Various things can be recognised with experience of them. I couldn't give a diddely about stigma. Oh boohoo, a total assholes been labeled a narcissist when actually they don't quite meet the level of 'asshole' to be one. My heart bleeds.
Yes I agree the word is overused. But I'm glad it's out there. It allows more people to hear about it and google the meaning and spot further people in their lives that are at best jerks, and at worst some sort of cluster b personality.
The only risk factor for me is that people often confuse npd with autism. You see it regularly on here, people asking if 'they could just be autistic?'. I'll concede that it could be really difficult if everyone labeled some person with autism as a narcissist (not to say someone can't be both) of the cusp, say based on a few similar traits displayed.
But on the larger scale of things, I'd rather the word was overused than underused. And I couldn't care less if mean people get slightly inaccurate labels.