I answered because "THATS WHY I HAVE A PHONE" but mostly because I'm expecting a call from my daughter in the Air Force, being deployed over seas I never know what my caller ID will be. Anyway, they asked if I voted in the last election and I told them it was none of their business, they asked me to spell my very simple name, I also told them if they knew me they would know how to spell my name and hung up. It's so sad that I can't use my own phone without being blasted with call from God knows who! I hardly ever got a call until I placed my name on the so-called do not call list...!!!
The criminals use an autodialer, programmed in advance with a range of numbers to call.
They often don't know who will respond, especially to unlisted and unpublished numbers.
Caller ID says Informed Electorate. Automated voice asking me to answer simple survey questions, starting with "did you, yourself, vote in the last election?" I hung up.