Only the sugary candy of the Internet encourages this, just like in any other venue. One can read crappy magazines or scientific journals. One can read trashy romance novels or literature. One can watch reality TV or in-depth documentaries. Online, one can spend the day playing farmville or they can check out the Open university, MIT's online courses, or any other of unlimited options.
The Internet provides never before seen access to information, and just like with any other part of life, it's up to each person to make sure they get a balanced intake.
The Internet is not encouraging this, it's the people. With great power comes great responsibility.