>Right, but it was never meant to specialize in user-directed filtering and discovery to the level you are describing.

this, and what you said earlier

>Isolated hashtags on IG were often not useful for finding specific content. To find what you want you'd need an interface to a page that showed posts across multiple hashtags which they didn't provide.

forgive my naivete but I wonder exactly what could possibly have been good about their tag system if it didn't help users narrow down to just the content they wanted?