Am I taking this topic too lightly? I'm married, been for years. I don't relate very well to this dating topic. I can currently make very direct questions, because I already know my partner.
I just don't take this survey very seriously. It does provide statistical fun, but you can't much rely on this info when you go probe your options.
Basically, if you are planning your dating to last longer, then it's advisable to be more discrete. I guess you can't never know in advance. If you are not comfortable asking, then you don't!