Through obtaining a domain of ones own, students tackle one of Watters mentioned problems the Web has created - loosing control of our personal data. I particularly enjoyed her suggestion of using this domain as a space where one posts first, then can share onto for profit ad based venues such as Facebook and Twitter. This gives students a platform to freely express themselves, yet maintain control of it and what information is shared with the world.
A problem I see with having more and more domains is that it contributes to the problem of how fast misinformation is spread because validity in the information of the sites would be harder to track.
Another problem I see occurring is that not all students have the same resources and skills to be able to afford and obtain a domain/hosting. Although it is easier nowadays since websites such as WordPress don't require HTML and CSS knowledge, it can still be difficult. However, colleges such as Harvard are working towards access for all students by using a platform called OpenScholar. While the platform usually costs, the university covers the costs and allows their students to create domains that just have "harvard.edu" added to the end. Furthermore, they offer free training and samples for interested students. This is a great solution for all different levels of skills to be able to have and control ones own domain.