Two eulogies this week. Writers are leaving Substack for Ghost and Beehiiv, citing the compounding cut the platform takes as audiences grow. And The New Yorker's Doreen St. Félix mourns Spirit Airlines not as a good product but as an infrastructure of modest freedom for people who could not afford the alternative. The economics are different. The betrayal is identical.

The Democratization Bait-and-Switch

Substack launched on the promise that writers could own their audiences. Spirit launched on the promise that flying was for everyone. Both delivered on the promise long enough to build dependency, then extracted value through structural friction: the Substack percentage climbs as newsletters scale, Spirit's fees accumulated at every margin of the journey. The "Substack Tax" is not a bug. It is what platform gravity looks like after the growth phase ends. St. Félix's framing is sharper than a business story: Spirit "facilitated a kind of modest freedom" that has no obvious replacement. Ghost and Beehiiv exist for writers with technical confidence. The Spirit demographic has nowhere equivalent to go.

Platform Exit and the Literacy Gap

The writers migrating to Beehiiv have something Spirit passengers didn't: the technical literacy to execute the exit and port their lists. This connects to a broader pattern. AI literacy gaps and platform exit barriers are structurally related: both trap less technically fluent users inside systems designed to retain them. Parker's bankruptcy adds a third data point: corporate credit card platforms that built switching costs into their product architecture collapsed when the underlying credit conditions changed. Platform gravity is only gravity until it isn't.