Yeah, as someone who sits somewhere between market socialism and a mixed model, I’m a big believer in the tragedy of the commons—that’s precisely why eg the rail network *shouldn’t* be run on the revenue from its own tickets, and why if it operates in a market of any kind that market should very specifically not be “free” (in the sense of “free to extract financial value from the service to give to its owners, to the detriment of its users/customers”).