@crazycells I was working on this idea back in 2021, only as a concept. I've got to my notes to see, I called it:
Hyper Tags
You might prefer HyperHash-Tags or Hyper-text-Hash-tags, but with Hyper Tags I more elements could be tagged. I generated this idea a from another project for specific note taking use cases that I was working on back in 2017, that never got finished, yet more recently I've seen it implemented in some way in other apps too more recently and i never saw this topic either, first time today.
I was also thinking about social search or more correctly recall issues and titled my musings
Search Functions - Through the Dimension of time.
Here where the potential tag levels and tangible elements for HypterTags in NodeBB
T1) Categories
T2) Topics
T3) Posts
T4) Paragraphs / lines / words
T5) Images
T6) Attachments
T7) Users
Maybe categories is one level too high but for the sake of completeness of the concept, it's included.
I was also think a C1, C2 etc. levels for custom tags for users, to help their own curation would be a neat thing. Tags relaly help organise in an inter-dimensional way and I do believe engages more efficiently how we recall information, working in sympathy rather than imposing a rigid structure (it's great to have both), think about those peopel who work on memory, they associate an image, a journey and then maybe an object to a piece of information and all of this gives them super memory recall, tags can work somewhat like that.
Rigid Vs Fluid
Structure Vs Tags
Creates a searchable dynamic