Hashtag mute for short durations, maybe 1 to 24 hours (this would be useful for following a hashtag on the main timeline without being flooded by posts at certain times)
Add hashtag to a list (so I can remove it from my main timeline but still follow)
There's some overlap between these two so maybe just #2 would suffice. I think they'd both be useful.
@nightdream not sure why they haven't done the second one outside of the "advanced web view". It's literally already in the code, they just have to make it available on other interfaces.