gklein628 have replied to poster 5 days haven't heard back.
I see two posts in two different threads around 5 days ago. Some people who don't appreciate that sort of thing may be less inclined to respond as the number of posts with the same question goes up.
The GrapheneOS user forum isn't a chatbot; GrapheneOS users live all around the world in different time zones, and some people with busy lives may not look at the forum every day. People do try to respond quickly to questions about installation failures, boot loops, unbootable devices, etc. But questions about SeedVault may not be treated as urgent merely because the word "urgently" is used in a post without any supporting details.