According to Jonathan Zittrain's features of the Internet's shared ethos, the Internet being uncontrolled means:

The idea that users both consumer and create their own content in the system.

The Internet is only as functional as its users and the extent that they are willing and able to make it work.

Problems are left open to be fixed as they occur so that users can come up with solutions.

The system is not set up to control user behavior; "laws" are norms established by users themselves.