But, email?

Sounded like a cool idea on first read, but when thinking how to apply personally, I can't think of a single thing I'd want to set up autoreply for, even drafts. Email is mostly all notifications or junk. It's not really two-way communication anymore. And chat, due to its short form, doesn't benefit much from AI draft.

So I don't disagree with the post, but am having trouble figuring out what a valid use case would be.