In January 2025, Disney+ quietly updated Section 2(k) of its Subscriber Agreement to redefine what "no ads" and "ad-free" mean. The new language introduces a catalogue of exceptions broad enough to drive a truck through: ads required by streaming rights, ads in live or linear content, promotional clips for Disney bundles, branded content, product integrations, and sponsorship messaging. Every one of these categories can appear in tiers the company continues to market as ad-free. The mechanism is a post-purchase EULA modification. Subscribers who signed up for a premium tier marketed as containing zero ads are now bound by terms that explicitly permit multiple categories of advertising — unless they cancel. There is no opt-out, no grandfathering, and no price adjustment. The original value proposition (pay more, see no ads) has been unilaterally altered after the transaction. The language itself is engineered for maximum flexibility. Phrases like "generally free of commercial interruptions, with certain exceptions that may change from time to time" convert a binary promise into an open-ended permission structure. Disney retains sole discretion to expand the definition of exceptions at any point. The September 2026 email to German subscribers — framed as a "clarification" — demonstrated exactly this: ads before and after content on Standard and Premium tiers. This is a textbook extraction pattern. The premium tier's price was set against a no-ads guarantee. That guarantee has been hollowed out while the price remains. The delta between what subscribers pay for and what they receive is captured entirely by Disney. Subscribers bear the cost of degraded service; Disney captures the ad revenue from inventory that was previously promised as non-existent. The broader significance is structural. Post-purchase EULA modification as a business practice means the terms of any digital subscription are provisional. The product you buy today is not the product you own tomorrow, and the vendor holds unilateral power to alter the deal. If every streaming platform follows this precedent — and the incentive structure says they will — the entire premium-tier model becomes a bait-and-switch engine where the initial price buys a temporary state, not a durable promise. Consumer protection enforcement is the missing variable. The EU's Unfair Commercial Practices Directive and Germany's consumer protection framework theoretically prohibit marketing a service as ad-free while contractually reserving the right to serve ads. The German "clarification" email in September 2026 may test this directly. In the US, FTC enforcement on deceptive advertising in digital subscriptions has been inconsistent at best. The Consumer Rights Wiki article flagging this is itself marked as incomplete and needing verification — a reminder that the documentation infrastructure for digital consumer rights is thin. But the primary source material (the subscriber agreement text, the German email) is concrete. The pattern is clear: a major platform is converting a marketed feature into a contractual fiction, one EULA update at a time.