We may have different definitions of "too many". When I get a new laptop and my son is transferring my info, he always asks if I REALLY need all of those bookmarks. I have over 20 first-level folders. In my "Cake Master Folder", for example, I have another "over 20" folders (2nd level). In my "Cake Central Topics" folder alone, there are about 10 folders (third level) PLUS over 100 marked threads/conversations/recipes. (Yes, he made me count them once!)
Now, let's look at those other 19 first-level folders ...... !