I'm a leftist. But what I see right now on the left deeply concerns me and makes me reconsider, stuff like black people advocating black only areas or events, which is ironic, because in the 60 they were fighting exactly against this, or leftists justifying and advocating violence against the extreme right, using the all time favorite excuse that "bad people deserve to be beaten".
FWIW I also got the impression that certain kinds of articles quickly disappear from the front page, and you can see on them more comments than upvotes, which is in general unusual and which suggests heavy downvoting. So to me it doesn't appear that the community is balanced. Which is not to say that this is a bad thing, many times some views are better than others.
No, it's really just that this misperception is so universal that I can't help but answer it even though I know it will do no good. Maybe it's a Beckett play.
The silencing happens because there is a huge left/right discrepancy on this site and because silencing your opposition became acceptable, due to victimhood culture.
One thing I would be very curios to know is the age distribution of people advocating silencing and no platforming.
I suspect that younger people support this due to the helicopter parent style they were more likely to have grew with, where the parent suppresses anything discomforting for the child instead of letting the child deal with it on it's own. So when that child grows it's normal for him to demand 'the state' or 'the corporation' to do the same thing, because only his comfort and views matter.