( If RetiredCoder = Lazy Genius, then A != Amateur.
    If he has a UFO-shaped quantum computer, then P != Human.
    If Bitcoin puzzles are solved faster than ever, then S = Secret Alien Collaboration.) 

Judging by the dynamics of the latest discoveries. I dare to assume that people who have access to huge computing power are working. Plus, perhaps good software, unknown to us. Perhaps these are miners. I also assume that RetiredCoder is a group of people with common interests.