As the person who started the AFD, I don't have anything against Ken Dakin personally, but part of the problem is that he obviously has a bias in analysing the historical significance of his own career. He thinks some (obscure) system he worked on in the early-to-mid-1970s was very similar to what (much more well-known) people did a bit later in the 1970s and into the 1980s (such as VisiCalc). Maybe he's right, but then again maybe what he did isn't actually as close to what those later people did as he thinks (and might even be unfair to those later people); since none of us have seen this 1970s system he worked on, it's a hard question to answer. What's really needed is someone neutral and authoritative to do that evaluation – and searching reliable sources (e.g. academic journals, books from reputable publishers, etc) I can't find anything approaching that. (What little I can find seems more focused on studying on-Wikipedia controversies about WRS than evaluating WRS in its own right.) Deletion is never permanent, and an article deleted from Wikipedia today could be recreated in a few more years if better sources appear for it during that time. (There are journals that cover this stuff; e.g. IEEE Annals of the History of Computing – if someone wrote a paper about this system, and had it published there, Wikipedia could then cite that as a reliable source.)