If a search contains stop words that will be ignored, flag this fact to the user instead of returning incorrect results.
For example, if a user searches for "intitle:to" in either the Mac or Web interface, the criteria will be dropped, and all the users notes will be shown. Which is incredibly confusing, as many of the user's notes do NOT have the word "to" in their title.
What should (IMO) happen, is the interface should say something akin to "to is a stop word and may not be used in an intitle search".
The thread where I asked my original question is here: