Considering the still open bookmark PR, I don't know if a new one makes sense at all.

It's always about priorities. As one can already bookmark links with ctrl+d in most browsers and even sync them between different devices when registering an online account (for example, using Firefox Sync in case of Mozilla browsers), the priority for the bookmark PR will not be as high as something like improving the trending/hot overviews on steemit.com, which is a very much wanted feature for many users.