Edit: Useful as in "knowing is half the battle". Being able to make an informed choice is worth something, even if it takes extra effort to filter back down.
This doesn't help someone who is completely new to the list topic though. Even worse they're probably going to get bad information.
So many times something is created to solve a particular problem, and for those who have experienced that problem the need for the solution is obvious. But for those of us who come along later it's not so obvious why I would want to use X.
I've thought many times that the number one thing that should be explained in any documentation, article about a technology, etc. is what problems this solves and give examples of the problems and how this is a solution to those problems.