Why have some people here such a hard time acknowledging that strong network effects can be one form of market failure? A network effect is a classical prisoner

Why have some people here such a hard time acknowledging that strong network effects can be one form of market failure? A network effect is a classical prisoners dilemma / tragedy of the commons / whatever it's called for everyone but the few involved making money... youtube and publishers. The "market" will have a hard time fixing itself. As with other market failures, it will probably only happen because of regulation, or the threat thereof.