Mailchimp has spent a decade ignoring calls to allow users to see what mailing lists they've been added to, as a prelude to mass unsubscribing from those lists (for Mailchimp, the fact that spammers can pay it to send spam that users can't easily opt out of is a feature, not a bug).
19/
I thought that the CCPA might finally let me see the lists I'm on, but instead, Mailchimp sent me more than 5900 files, scattered through which were the internal serial numbers of the lists my name had been added to - but without the names of those lists any contact information for their owners. I can see that I'm on more than 1,000 mailing lists, but I can't do anything about it.
20/