Our team is planning to clean up and (re)build our tagging structure on Guru. We have trialed a “free-for-all” approach, but found that the tags were too inconsistent, and are looking towards a more purposeful tagging scheme. Currently, we are thinking of using controlled (admin-created) tags to group cards across various collections and boards (ex. onboarding material), and uncontrolled (user-created) tags for alternate search terms.
Before getting started, I just wanted to gather some insights into lessons learned / pitfalls to avoid / best practices / examples / experiences of how you have structured your tags and how the implementation and maintenance process has been like.