So much wrong with substack. I'm not supporting any laws whatsoever. I think you are also mixing public with private: the contents of your blog may be public but the reading habits of your followers are not, so the privacy of your readers is violated. But this is mostly not about privacy or anonymity, it's about freedom and resiliency. If you care about freedom you shouldn't be posting in a closed platform like substack, they hold your content ransom and your followers. You’re trusting a third party to host your content, and they can purge you at any time.