Rename top level
I can see there are five boards, Getting Started, News, Help, Comment and Mobile Apps. I just recently realised if I'm down in one of those boards, the only way to come back up (apart from the browser's Back button, but I might need to press that many times), is to click on 'Knowledge powered by you'. So effectively, 'Knowledge powered by you' represents the top level, or is a label assigned to it. Could 'Knowledge powered by you', for clarity, be renamed 'Knowledge powered by you - Top level', or something like that, to indicate that that's the way to go to the top level? As for a new user, as I recently was, it's quite hard to see how to 'back up', and without a proper label that takes a long time to realise. Hope that helps.