I don't agree with that idea. When people say "The internet isn't fun anymore", I don't think this generally is a change in the person so much as fundamental changes in how the modern internet is experienced.
By analogy, if content on the internet is like a liquid flowing into a container, then it's predictable that the liquid will ultimately match the shape of its container. If you change the shape of that container, the liquid's ultimate shape (and thus the way it is experienced) changes in a predictable manner.
When people say the internet isn't fun anymore, this isn't a comment about what's being poured, but the structure in which it's received and presented.
Say what you will about streams of "information": I believe if you switch a man's wine glass with a dog dish, only a wino would say nothing has changed.