In the founding documents Tim Berners-Lee knew he was launching a kind of space, enabled by particular hardware and software, where people were free to read and write as they wished, to collaborate, to build audiences, and to assert relationships via links.
Though money was required to build this kind of space, and to read and write there a person needed money for access and tools, Berners-Lee was not creating a commercial space. As designed, the space with its creative freedoms was so obviously worth funding that no direct return on investment was required.
Some experiments are just worth paying for, no questions asked.
But people realized that the hardware and software could be used to create commercial spaces of one kind or another. Craig’s List is an early example. These commercial spaces could, practically speaking, close off nearly all of the freedom Berners-Lee envisioned.
On Craig’s List you could read ads all day long, and you could place an ad yourself, but you couldn’t write a novel there. You couldn't organize a union or publish the results of your investigation into local politics. You could write an ad of a certain type, placing the right kinds of text in little boxes set up and organized for you by Craig’s team.
Institutions like Craig’s List have come close to destroying newspapers in the United States and elsewhere. They were free to do so — that’s capitalism for you — even though newspapers have an essential civic purpose in a free society.
Even though people appreciate a foundational civic institution in a general, fuzzy-headed way, we don’t really take much notice when one is being crushed by a fresh wave of innovation. Or captured. Or turned into a hollow shell of its former self.
A web page of one kind or another must have a web address but it may or may not be part of the space Berners-Lee envisioned. It may or may not be part of a space of individual and group freedom to test and assert meaning.
Staying true to TB-L’s vision, extending and refining it, naming it precisely, and protecting it, is of immense importance in this perilous time.
PS. In the 1989 founding document, Berners-Lee spoke of "Human-readable information linked together in an unconstrained way." So it's always been about freedom to make connections. In the next paragraph he says it doesn't have to be limited to texts.