Yes, what is being asked is 'are you a DVC member?'. The answer to which is yes, regardless of the points being direct or not. If they want to know if we are entitled to discounts then they can ask this rather than try to get at something by asking a different question!
The OP, and other people on this thread including myself, have all said we have been asked this at Aulani. Some of the reasons they ask this are to give you a parking slip for the car so you are not charged (unrelated to direct or resale), to give you a sparkly pool wristband (I think this is also for both direct and resale), to know whether to start a sales pitch or offer a villa tour (also unrelated to direct or resale), and so that they can allow other visitors to see happy DVC members being welcomed home!
I'm not going to try second guessing a simple question, or pretend I'm not a member because they're secretly asking something else.