200 words on one library provides more insight than 'XYZ Library: A library that does XYZ for people that do XYZ.'
Lists rarely spark insight, but knowing that Bob overcame a barrier with Canvas by utilizing XYZ library, that's gold. Hell, I might even use XYZ to try to attack a similar problem.
PS. I'm glad to hear people appreciate posts with more detail and substance, as that's generally what I can write and like to read, but it often seems that the most commented on links are lists, and most of the comments are subjective arguments about why X should or should not be on the list.