One of the small things that I liked about Workflowy was the ability to delete a tag by SHIFT+Left Mouse click.
This comes in handy when you use tags as status. For example, I often tag things with #discuss and the [[name of person]] When I am around that person I have an easy way to see what I need to discuss with them.
When I’ve completed that discussion it would be excellent if I could simply shift+click that tag to remove it.
For extra credit, you could probably imagine a feature where you could shift click to cycle through different status types when clicking a tag. discuss/done/follow-up. Or something like that.