Hello, and thank you for your feature request regarding adding a 'date joined' section for group members. This is indeed a valuable suggestion for group management. We wanted to let you know that another resident had previously brought up this idea, and we have found a duplicate post in Second Life's previous bug tracking system (BUG-231966). We are merging your comments with the existing request to help prioritize this feature. While we don't have an estimate for when it might be implemented, please keep an eye on future updates. We appreciate your input and hope you continue to share your ideas to help improve Second Life. Thank you!