I’m not sure I follow what exactly do you mean by “disabling” tags, but for what is worth:
- It is already possible to customize how tags look using CSS (a search on the forum would reveal how). It might be possible to disable what happens when you click them too, I’m not sure.
- You can also disable the tag pane
Things not currently possible:
- Disabling tag autocompletion
- Possibly, disabling clicking of tags in preview mode.