Listen y'all, CNC is edge play. It's inherently dangerous. We don't worry about damage from edge play, we actively anticipate damage from edge play. That damage may be predominantly mental with CNC, but that doesn't make it any lessor.
CNC, as in all edge play, is for a ridiculously small group of people that are a rare combination of interested enough in it, healthy enough for it, mentally strong enough for it, experienced enough for it, and in a trusting enough relationship for it. It's probably not a good idea for you, whoever you are.
Stop throwing CNC around like it's nothing more that some light kink play. Stop glamorizing something you probably have zero real life experience with.
And, to the big mean Tumblr doms posting about CNC, trust me, we can tell you've read about it in online smut and that's it.