Nick Johnson, the founder of Ethereum Name Service (ENS), criticized Unstoppable Domains on social media. Johnson not only criticized Unstoppable Domains for lacking legal support or the binding force behind its Web3 Domain Alliance organization, but also accused Unstoppable of applying for a patent for an innovation of ENS.

Johnson said the problem can be traced back to January of this year when Unstoppable obtained a patent called "Resolving Blockchain Domains," which is based on the innovation developed by ENS and does not include its own novel innovation. No organization can rely on such non-binding commitments when it comes to core aspects of its business operations. Therefore, we demand that Unstoppable Domains add legal support behind its public relations commitments and make an irrevocable patent commitment unconditionally. If there are still differences between the two sides on this issue, ENS is ready to challenge this patent at any time.

Johnson also attached screenshots of the communication between Unstoppable and ENS.