Ben Franklin said, “An ounce of prevention is worth a pound of cure” and he had never seen Infusionsoft.
Tags are such a simple thing that the power they have in Infusionsoft is often not apparent until you have been working in your application for a few months. If you do not exercise some care in naming tags, create meaningful tag categories, and have a strategy for using both, in a few months you will have a real mess on your hands.