Ofcom CEO Dame Melanie Dawes told the Commons Digital, Culture, Media, and Sport Committee what the legal math already showed: if foreign courts block enforcement, the regulator will have to accept it cannot recover fines levied against American platforms. The admission, characterized by Guido Fawkes as an outright defeat, confirms what a US federal court in the District of Columbia signaled more than a year ago in 4chan v. Ofcom. The DC court's opinion was unusually explicit. While ruling against 4chan on a sovereign immunity motion, the judge went out of his way — gratuitously, sua sponte, on issues neither party briefed — to note that American courts generally refuse to enforce foreign judgments that violate the US Constitution. The court cited Matusevitch v. Telnikoff (1995), where a British judgment was rejected as repugnant to First Amendment policy. The judge then added that foreign penal judgments face an even steeper barrier, regardless of constitutional questions. The message was unmistakable: your writ doesn't run here. Preston Byrne, the attorney representing 4chan and three other American platforms that refused Ofcom's censorship orders, frames the outcome as a practical end to the dispute. Ofcom cannot enforce the Online Safety Act in America, knows it, and has now admitted it publicly. Roughly 200 American platforms received Ofcom orders; only four refused, all represented by Byrne's team, and only one was 4chan. The other 196 complied voluntarily — a detail that reveals how much of content regulation's power rests on the assumption that targets won't fight back. Ofcom's next move is already visible. The regulator intends to return to Parliament seeking authority for "interim business disruption measures" — the power to block foreign websites in the UK before completing enforcement, rather than after. These powers were explicitly rejected by Parliament during the Online Safety Bill's passage and have since been repudiated by Nadine Dorries, the former MP who introduced the legislation. The pivot from fining foreign platforms to blocking them domestically represents a significant shift in the censorship mechanism: from extraterritorial punishment to national information control. Byrne notes his client has already priced in a UK block. The strategic calculus is straightforward: being blocked by UK ISPs means the UK government is censoring its own citizens and infrastructure, not compelling an American company to do its bidding. That distinction matters legally and politically. A VPN defeats the block technically; the political optics of a Western democracy maintaining a national firewall do the rest. The broader pattern is what deserves attention. The UK's Online Safety Act represents one of several attempts by democratic governments — alongside Australia's eSafety Commissioner and the EU's Digital Services Act — to extend domestic content regulation across borders. The 4chan case establishes a practical limit: when the target has no assets, operations, or presence in the regulating country, and the target's home jurisdiction has constitutional speech protections, extraterritorial enforcement collapses. The remaining question is whether this limit holds only for the small platforms willing to fight, or whether it reshapes the compliance calculus for larger ones. Byrne calls for passage of the GRANITE Act to formalize First Amendment protections against foreign censorship orders into permanent US law. Whether Congress acts or not, the 4chan case has produced a concrete precedent: a foreign regulator publicly admitting it cannot compel American compliance with speech restrictions that would violate the US Constitution.