Ethical concerns on Web 2.0+

Based on Axel Brun's article on Web2.0 and an interesting concept of the movement which is called being "produsage", I found that there might be some ethical concerns on Web 2.0+. Web 2.0 has more user-generated content and usability for end-users compared to its earlier version, Web 1.0. Web 3.0 provides more personalized usability and user-experience for web users by REQUESTING personal information. So someone might say that in the name of enjoying improved/personalized experiences, we are persuaded to sacrifice our privacy.