The problem with this line of thought (and generally libertarian ideology) is the requirement of a threat of violence to conduct commerce. The violence can't come from the parties involved because if there's an imbalance it ruins the neutrality of trade. But the threat of a violent outcome (jail, or fine with physical enforcement) must be present to prevent theft.

Once you accept that you have to give a 3rd party the monopoly on violence you are now effectively giving them the authority to do as they please. You can wax on about how government should have less power on internet forums, but organizations with power and weapons don't give up that power without using the weapons.