Interpreting charitably: someone who had what was at the time a death sentence of an infectious disease and (if allegations are true) sexual relations with people who could not legally consent ... might suggest a certain amorality or immorality.

(I'm not specifically familiar with either Foucault's behaviours or Chomsky's description, I'm simply referring to the discussion here on HN, and its guideline "Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith." <https://news.ycombinator.com/newsguidelines.html>.)