I desperately want the ability to add detailed notes for books on my to-read shelf to remember details like who recommended it to me, when, and why. This is the only major feature I've consciously wanted for years on StoryGraph, and I finally got a Plus membership so I could advocate for it. My to-read list is huge (imported from Goodreads yeats ago, which was a transition from a spreadsheet, which was a transition from a handwritten list I started as a kid). I've used tags to help somewhat with this need but it's just not doing the job I really want: give me deep context for why I decided this worth saving to my already enormous list of things I want to read).