Tags are contextless

Tags are also dumb because, once created, they have no context.

I learned this with the JDex: it's not enough just to create a thing. Later, you've forgotten what, and why, and where. So you type yourself some notes so that you can remember. These notes are vital.

No tag system has this. It's just here's a space for you to type a simple string and good luck! So in the moment, every new tag makes perfect sense. And later that day, it's nonsense.