IBM is slowly ruining everything they produce. Their systems are incredibly secure because it's extremely difficult to even run them normally as an operator, much less hack in. The byzantine/circular documentation and downloads pages on their site are woefully inadequate in enabling developers. Web searches reveal little information if you have a problem, as not many people run these systems. You generally have to pay stunning amounts to 3rd party professionals to manage your platform for even what should be relatively simple things like patching (PTFs), OS updates, and language upgrades. They will balk if you tell them they have bugs in their systems unless you can produce code yourself pinpointing the problem. They aren't interested in working with schools/universities to train young people to create fresh workers knowledgeable on their systems. Seems like they are milking the company and coasting until it expires.