I'm sorry, but snowflakes....
If I were told by my Contracting Firm I was going to be moderating Facebook, I think I'd be aware of what I was being required to do.
Mind you, I think I'd find the general mindless drivel far more traumatic than the gross extremist material.
The nasty might make you question humanities value as a species, but I think the vast masses of pointless moronic self-absorbed consuming humdrum would eventually force you to the conclusion that humanity was without question a dangerous and mindless immoral voracious locust species and the nastier portions of the population preying on the rest was natures desperate attempt to thin the numbers somewhat.