https://oag.ca.gov/privacy/ccpa#sectiona> What is considered personal information and sensitive personal information under the CCPA?
> Personal information is information that identifies, relates to, or could reasonably be linked with you or your household. For example, it could include your name, social security number, email address, records of products purchased, internet browsing history, geolocation data, fingerprints, and inferences from other personal information that could create a profile about your preferences and characteristics.
> What is not considered personal information under the CCPA?
> Personal information does not include publicly available information that is from federal, state, or local government records, such as professional licenses and public real estate/property records. The definition of publicly available information also includes information that a business has a reasonable basis to believe is lawfully made available to the general public by the consumer or from widely distributed media, or certain information disclosed by a consumer and made available if the consumer has not restricted the information to a specific audience.
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I would draw attention to the final parts of that second quote.
> The definition of publicly available information also includes information that a business has a reasonable basis to believe is lawfully made available to the general public by the consumer or from widely distributed media, or certain information disclosed by a consumer and made available if the consumer has not restricted the information to a specific audience.
By posting to HN, I suspect that people would have a reasonable basis to believe that the information was made to the public on widely distributed media without restriction to a specific audience. In that case, its publicity available information and thus not subject to "remove all my comments."
I could be wrong (I'm not a lawyer) and if you believe I am wrong and believe that HN was in violation of this, it would be an opportunity to find a lawyer who agrees with you to make the demand and escalate it as appropriate.