If I see a post that I don't want to see again, it would be nice to have the ability to permanently hide that post from my feed through the hamburger menu, which currently only allows you to report a post.
(Apologies for double-posting, but there's no way to edit comments, I guess!)
Just learned that the ability to hide a post seems to already be present for anything marked as 18+. Make that available for everything!
I think this would be especially valuable. Sometimes a post will get popular and you will see the same post multiple times all over your timeline. That's especially not fun if the post's subject makes you feel kind of upset (in a way that doesn't warrant making it someone else's problem).