Re: What's the problem?
There's lots of things like this. The one I dislike is the 'telephone survey' that is 'anonymous', but they've called you (so know your telephone number), and start with the question "What brand is your television". From this one question, they attempt to identify what income demographic you're in (you know, Sony or Panasonic=high earner, Samsung or LG=cost and quality conscious, Technika or Bush=real cheapskate) , and then change the survey questions accordingly.
You can pretty much guess that if you complete the 'survey', you will get bombarded with cold calls trying to sell you appropriate insurance for your demographic. I was amused one time because I was misheard, and when I said my main telly was a "Digihome", they filled in DGM, and I didn't bother to correct them. Imagine my surprise when a few days later I got an offer for an extended warranty for my DGM television! They could not even check that it was a real brand!
I screw all of these surveys up, because although I am considered a high earner, I don't generally buy high value brands. But if I engage with the survey, I generally bail at the point that I feel they're too intrusive, which is normally not very far in.