Losing a monopoly on specific game servers certainly can have a commercial risk. Are you entitled to that at all, let alone when you stop hosting them?

Legal risk of what? Others will have that responsibility, unless you’ve done something you don’t want others to see?

Safety - Yes someone might have less moderation than you - that’s up to the users to decide if it’s okay. We still have the right to change our car’s break pad - the thing that stops a large mass moving fast from hitting children.