Ok, I messed up on my previous post...sorry. Though NOT user-friendly by any means, apparently the booksmarks sort function does exist as posted by lando242 in this thread. Thank you to lando242, and I stand corrected.

I'm using v29.0.1795.47 of Opera and sorting bookmarks is one of the best kept secrets of the Opera development team IF it exists.

And, IF it exists, why isn't it more obvious to the end users? One of the primary goals of any application development team should be building a user-friendly interface.

As far as I can see, bookmark sorting functionality simply doesn't exist in Opera - shame on the development team for neglecting a most basic function of list design.