Many of us get involved in an online group which is safe. Some of us join groups that are moderated, such as those maintained by professional groups. The Kiwi Journalists Association is a good example, in that it manages to restrain its members to proper, reasoned discourse - playing the ball, not the person, in other words.
But there are many other forums where people are waiting like attack dogs, dying for an excuse to use the most vile phrases. It's like dropping a bomb. They live for the effect they cause. They want to see how far the ripples of their cleverly-worded put-down will go. It's addictive.
The Times-Age is proud of its online audience and the degree of moderation the posters (mostly) show in their discourse, and we're lucky in that. But sometimes there's "flaming", the online word for deliberately provocative behaviour. Sometimes there's hatespeak. Sometimes there's condemnation out of all proportion.
As a newspaper, spirited discussion from an online audience, even anger, is part of the game. We don't engage with it, but simply let it sit. It doesn't hurt us.
When you're consumed with self-doubt, it's a vulnerability an online audience will exploit. The tragedy is not realising that "trolls" live up to their name: emotionally deformed dysfunctional human beings who should be laughed at and ignored, not listened to.