z64 Are there two types of hints? I just tested and it seems that the behaviour has indeed changed slightly since I originally created this ticket, in that the hint in no longer prefixed with "Quick Answer for..." phrase. But aside from that it seems to me the hint system works the same.
There is another type shown when your query starts with a question-word (How, What, ...), shown in the second position
What I'm seeing is that a hint appears as soon as there are three words in the search input box. It doesn't matter whether the words imply a question; they can be total garbage:

Perhaps internally these hints are somehow distinct, but for me, as a user, it is one and the same thing. I want to be able to disable the hints for Quick Answer, regardless how the hint is triggered: by length of the search phrase, by its contents, or by explicit question mark at the end. I know the feature exists, I know how to use it when I want to, I don't need hints for that as they clutter the interface.