I feel so sorry
For the likes of Elsevier and Springer and their I'll, they must be missing out on a few dollars.
What really galls me is the way they frequently archive well known or older information that is or should be freely available, put it behind a paywall and seem to massage search results such that you need to scroll through countless pages of search results to find the free and open source papers.
These publishing companies must must have teams hoovering up old tech and patents.