The GitHub repo has been updated to reflect current community resources and starting points.
The community Slack was retired earlier this year as part of a longer term plan to grow and support community with a more cohesive experience per The MongoDB Community: Our First Steps Together Into A New Future. We now have a larger (and more active) group of members on the community forums .
The login message on the right side of the page is a generic template provided by LaunchPass that can’t be hidden.
We could completely remove the LaunchPass page, but that dead ends anyone following old links rather than giving them opportunity to discover the new home. It has been more than 6 months since the migration, but I’ll start a discussion with the community team on whether it is time to fully remove the old landing page.