No. Publishers can disable DRM if they want on Kindle. The reason they stopped accepting Mobi is because it's an ancient format that lacks a lot of features ove

No. Publishers can disable DRM if they want on Kindle. The reason they stopped accepting Mobi is because it's an ancient format that lacks a lot of features over ePub and Amazon's newer formats. It's like Apple not accepting 64kbps MP3s for iTunes. There's just no benefit, you can always make a just as 64kbps MP3 for your ancient device if you need it but you can't really go the other way around. Same with Mobi and ePub/Amazon's newer formats.