Whilst waiting for Ghostbusters (which is awesome, and you should see it), I dropped a few tweets on what constitutes criticism, what constitutes abuse, and what lifts (lowers?) abuse to harassment. I’m saving this for future reference since I expect to see “can’t handle criticism” again from harassers and want to have this handy.
I hope that’s clear. But to put it another way: criticism focuses on a work, abuse and harassment on the worker.