Reminder: Be very careful with quizzes that measure your "political spectrum" or some other variation that determines preferences, proclivities etc... based on a set of arbitrary and rudimentary questions
Unless you're blocking all trackers, or better yet on Tor, you've just given ad companies yet another set of data points to target you
Worse, you've given authorities, which will inevitably tap that data, ready access to information that's illegal to put on any census