Richard Medhurst has never had any involvement in the GrapheneOS project and we've never worked with him. He's one of over 500k people who uses it. He made positive posts about it on X as many others have done too. There are a bunch of much more prominent people using GrapheneOS. GrapheneOS users are spread around the world and come from across the political spectrum. Many people using it have much different views from Richard Medhurst. He's one guy who uses it and doesn't represent the overall userbase or the project.

Your claim above that he disappeared since August 24th appears to be based on him last posting on X on August 23rd. However, he sent a question about Pixel 11 support for GrapheneOS via his Matrix account on August 31st. We answered on September 1st and received read receipts. We don't follow him on any platform and don't have any regular communication with him so there's nothing unusual about lack of any activity since then. Prior to messages in August, his last Matrix messages were sent in February. There's no basis for claiming GrapheneOS has anything to do with him not posting on X for several months.