> "Something" doesn't mean "anything". You can't offer your services in exchange for e.g. my body parts. Why are we willing to ban that but not our data?
Because if you were to run a survey over the general population the large majority is fine not having to pay for gmail, google search, maps and other "free" services while some data may be collected doing so while a much smaller percentage thinks it's OK to sell their organs for that?
Because if you were to run a survey over the general population the large majority is fine not having to pay for gmail, google search, maps and other "free" services while some data may be collected doing so while a much smaller percentage thinks it's OK to sell their organs for that?