When trolls find out that I'm generally pro-moderation, they give me a big lecture about free speech and bubbles and silos—and how we should listen to "everyone".
When they go on about this, my natural conclusion is, "Okay, they're not talking about a hypothetical—they *know* they're going to be moderated eventually but are trying to postpone the inevitable."
Trolls, themselves, don't tend to believe in listening to everyone.
They're certainly not looking for debate.
To them, a discussion is not even about uncovering a truth or—more unsubtlely—being right or wrong.
It's about winning or losing.
From a troll's perspective, all interactions are a game with a desired outcome: winning.
In order to deal effectively with trolls, you can't even let them play their game.