wow! that’s amazing. I was just having the same thought… a guided tour to show folks around would be the ticket.
I was browsing https://www.useronboard.com today which has some interesting “teardowns” of onboarding experience for various websites. Food for thought.
@sperok has done something like this but I don’t know the status of his efforts.
https://meta.discourse.org/t/onboarding-using-an-iframe-and-a-cookie/20604