< am I missing something? (everything?)
Apparently with a newsletter you can export your emails and take your subscribers with you to Buttondown if Substack turns out to be a shithole or if MailChimp isn't working out for you.
However, whenever I hear somebody railing against data collection and monetization on the internet and find that they have a mailing list instead of a blog with a RSS feed, I want to offer them some Ex-Lax because they're plainly constipated. Why else would they be so full of shit?