Admin ability to view member group/offer join dates and post history from member profiles

As a community admin, I'd like to request two improvements to member profile visibility:

1. Group & Offer join dates — When viewing a member's profile, I'd like to see the date they joined each specific group and offer, not just their overall community join date. This is especially useful for tracking upgrade conversions and understanding where members are in their onboarding journey.

2. Post history on member profiles — I'd like to be able to see all posts a member has made directly from their profile page, without having to manually search through individual channels. This would make it much easier to review member activity and engagement at a glance.

Both of these would significantly improve the ability to monitor member progress, personalise follow-up, and manage a growing community more effectively.