The documentation listed here is really only kept for legacy purposes. Many were initially hosted on the TWiki platform, then were static, then were on MediaWiki for many years and last year I moved them all to Wordpress. Now they are here.
Most of these have not been touched in years and likely won't be updated or even added to in the future. However, judging by how many hits some of these articles continue to receive (someone is reading them!) there's obviously still some value to them. With that in mind, I moved them over to this new platform so that they are not lost.