Today, there is a plethora of software available for download that, simply put, is just plain junk. Quality meant something then, but I'm not sure it has the same meaning today. It affords an opportunity to gather significant amounts of personal data about the person downloading the software. Once the vendor obtains this data, it very likely will end up in the hands of marketers who will be very happy to share it with marketing firms willing to pay big bucks for user-supplied demographics. Marketers know far too much about me already - I don't want to help them any more than I must.
Privacy is more than just elusive.
Unless you change your identity, your demographics will become part of the national experience. Maybe I'm overstating this a little, but I value my privacy, and I'll not let software companies grab my demographics just for the right of being their guinea pig.