I don't know if anyone said this yet, but the possibility to either remove suggestions from history and bookmarks, either completely, or for specific sites, should be added due to the fact that - surprise surprise - people do not want their pornhub history and bookmarks popping up when browsing in fron of other people, or when other people borrow their browser. Neither on a computer or not.
I never see anyone stating this outright even though it's likely the main motivation to have the functionality to remove it overall.. and most of us actually do browse porn.
I believe the creators of browsers are sadists, willingly not helping us out with this out of sheer pleasure.