In an effort to make Phabricator more friendly to inexperienced users, I wonder if there could be a persistent "Create new..." button on the top bar (next to the bookmark) with just two options: "new task" and "new bug". This would catch users who log in and then are overwhelmed by the interface and don't know what to do (I was one of those once!).
I see that something similar shows up on the top right of deeper screens:
@Aklapper and I discussed this yesterday.