I kind of have to disagree with you a little bit on this because sometimes if someone is saying things in chat that others find uncomfortable or triggering, sitting by silently isn't always the way to engender peace. Sometimes the person doing the triggering is doing it on purpose and needs to be stopped or at least told they're behaving unacceptably, even if others think they're behaving well enough.
Sometimes putting someone on ignore isn't the best choice because, while you don't see the perpetrator's comments any more, you see the arguments everyone else is having with them and that is upsetting to some.
I guess a better way to put things is "don't be a jerk". Would that this would be sufficient but we both know better. LOL