@laura One of the interesting points in Snowden's autobiography was his description of the Internet of his childhood vs. today. Back then he could try on and dispose of personas and there was a stronger distinction between "real life" and "online life" that allowed one to make mistakes, mature, change ones mind, etc.
He makes a pretty strong case that many of the problems with the modern Internet are rooted in companies wanting to link real identity with online identity for ad targeting.