What the heck does IPtables have anything to do with running a MN? Was that the first term you could think of you could throw out there? An understanding of these technologies is not a requirement for running a MN. Yes, it helps you administer your own node if you have the knowledge but these folks should know that a fully managed host provider is also an alternative, too. We need to stop discouraging people from joining. This is not how IT services in today's commercial space works.