Stealth addresses using nostr

The issue regarding the inability to reply on a certain delving thread might stem from a requirement related to membership in specific groups. Specifically, to engage in discussions or post replies in the "Silent Payments Working Group" category, one must be a member of the Silent Payments Working Group. This prerequisite is further clarified in a pinned thread dedicated to outlining the guidelines and rules for participating in this category. This measure ensures that discussions remain relevant and accessible only to those with a vested interest or expertise in the subject matter, thus fostering a more focused and productive exchange of ideas within the community.