I don’t use tags as a way of querying topics. Instead, I use a use a small set of tags (FILETAGS in org-mode) to drive functionality for task management and notes.
A project tag is used to connect tasks with org-agenda. That way my notes are not separate from day-to-day work.
A private tag or draft tag is used determine whether or not to publish the note publicly. I sometimes search for drafts to finish them up later though I don’t always come back.
An entity tag indicates a person or company. This is similar to an at mention to associate a task with a person. Using org-roam back, I can query tasks by person so I can follow-up on delegated tasks or review work later.
Links to this note
-
Tags are used to create heterarchical systems that lets you iterate on retrieval. The tag names are abstractions like categories, projects, or ideas that are encoded on top of a set of items (like notes) to make it easy to find later.