Comment by alkonaut

The discussion of moderation always falls into the pit of discussion echo chambers. And while that's a problem, it's perhaps better to keep it first on the topic of objective abuse moderation (basically: how to prevent 99% of content from being spam that no human user wants). Since that has to be solved regardless of whether there is any further moderation beyond that, the moderation discussion can be about that first. There is no echo chamber created by removing botspam.

Next, you can have moderation that is strictly legal. Basically how do you moderate things that courts are finding illegal. How do you reconcile that courts in different jurisdictions can disagree and so on.

Finally - and optionally - comes the step of moderating for bad behavior, disinformation and so on. That is, human behavior that has a negative impact but falls short of being obviously illegal. And that's a difficult topic, as we have seen with facebook/twitter and elections for example. But it's important to remember that moderation isn't just this. By volume, the kind mentioned in the first paragraph is far larger.