What changed? KU. Readers enjoy snackable fiction, as long as it’s free, or close to free. If you can write short stories in popular genres, and enroll them in KDP Select, so that they’re available to KU subscribers, you’ll make sales. Real sales, as well as your share of Amazon’s fund.
Yes, your short story sales are in addition to your share of the KDP Select Global Fund, which is the pot of funds by which Amazon pays you for free reads. Amazon pays you for free reads, as long as a reader reads more than 10% of an ebook. It’s easy for readers to hit the 10% mark in a short story, or novella, even if they don’t finish the ebook.