My summary: Drew DeVault first posted an anonymous teardown of Richard Stallman, accusing him of sexual deviancy & political failings. Drew pretended the report was new to him. HN discovered Drew was actually the report's author and asked him to clarify. Drew hasn't commented since then. Other sleuths soon pieced together that Drew (or "Drew") had a long-running sexual interest in anime children pornography.
IMO, Drew's attack against RMS feels hypocritical.