The TeXinfosystem from GNU is about the worst software system I've used. It's almost like the designers went far,far, far out of their way to make it cryptic, complicated, and nearly impossible to use. I'm sure that the six people on the planet who understand it are getting a great deal of work done with it, but the rest of us are just left scratching our heads. This was clearly a case of "It ain't broken, don't fix it."