I wasn't originally going to reply to this thread because I didn't have much else to say other than that I like this suggestion, which was why I liked your post, but the amount of requests to add things to drop down lists got me thinking.
What if there was a way that members can, on their own, have a custom drop down list with their own necessary links? While necessary to some, not everyone needs most of the links that we have in shortcuts bar and there are some people who would probably prefer to have links to easier access different areas of the forum.
If there was an option in our forum settings that allowed us to paste the link of a place on the forum into a new drop down in the navigation bar called User Links or something like that, I think that it would be used by a lot of members. There would be a limit to five (or more, depending on whatever someone decides), and the links that the member pastes into the text field would appear as "Link 1," "Link 2," etc. The areas on the forum are pretty self explanatory if you look at the URL of the destination, so it wouldn't be a necessity to add titles of their own that correlate the link so long as the status bar is viewable on a browser. The only problem is is that I have no idea how to implement it, and I'm not really sure if it's something that would be much importance to code. But I just thought it was worth mentioning, while we're on the subject of convenience.