> when a dozen major online platforms and infrastructure services "independently" ban the same person in a 72 hour period
This is a weird complaint. One site bans Alex Jones (after a major news event covered internationally). Media gets wind (likely due to him complaining very loudly about it) and starts asking the other major social networks why they aren't following suit.
No conspiracy required, for the same reasons multiple independent news sites writing about Fitbit today doesn't require collusion.
The same Noam Chomsky who infamously denied the "Killing Fields" communist genocide in Cambodia, blaming it all on America instead? The smoking gun: https://chomsky.info/19770625/
We've banned this account for using HN primarily for ideological battle. That breaks the site rules. Regardless of what you're battling for or against, using HN this way destroys the curiosity that the site exists for.