Comment by ghusto

You're examples fall into the two categories I've talked about: Those where I believe you should stick to your convictions and say it as yourself, and those where privacy options would be available (again, as in real life).

For example:

> If there's a group of young men playing loud music on a bus, do you tell them that they're idiots

Why would you tell them they're idiots? How would that help anything. If you do that online anonymously, are you trying to better the situation, or vent your own anger and thus making the world that much more negative?