I've stopped commenting in certain threads and just use them to add people to my ignore list.
My problem isn't even with that PC policy, but with the posters who applauded its introduction and felt it was necessary - I recognized a lot of names whose level of "discourse" and reaction to well-reasoned arguments I've come to associate with "lalala-I-can't-hear-you-lalalala"
Among them there are some of the most intentionally(?) obtuse, hypocritical people on the internet.
They don't even realize that they act exactly like people they complain or make fun of in other threads.
On certain issues they seem to switch off their brains, argue purely from emotion, apparently misinterpret everything to fit their views or emotional state and blindly attack everyone who doesn't echo their sentiments.
They made it impossible to have actual, reasonable discussions because they're e.g. apparently incapable of differentiating between trying to understand why some bad thing happened and endorsing it.
They also give the impression that showing the correct amount of outrage about a problem and the correct distribution of blame is much more important than actually fixing problems or preventing shit from happening again.
I gave up on Fark when I clicked on the profile of one of the densest, most hypocritical, most vocal, personal attacks launching, reasonable discussion killing douchebags - and saw that someone thought it a good idea to make this massive all-around asshole a moderator.
If 9/11 had happened with todays Fark, the first comment would be "in before some victim blaming terrorism apologist explains why the people in the WTC deserved it" and then you can watch how the first poor sod posting something like "I wonder what reaction Osama was hoping for" or "how do you brainwash 20 people to commit those acts" gets assigned the aforementioned "in before.." role and torn to pieces for shit that was never said or even remotely implied.