Yes, yes and yes. I have always found hard to navigate through the admin dashboard. Especially if you are not a member of discourse meta and have never heard of the howto category, it’s very difficult to find the settings you need. Although there is a search bar, there are more features and settings that are hiding somewhere.
What if there was a dynamic tutorial for admins, just like discobots’ for new users. 
That would for sure help new admins, as they would have the chance to configure their forum from an early stage. I am not sure whether it’s something easy to achieve, but I would love to see it some day.