Is it though? That comment recommended a hodge-podge of open source tools to approximate what Dropbox offered in as a complete solution. GNU Emacs literally has a several decades head start on any new niche electronic writing tools and is, in my estimation, a towering achievement in this space.

But it's true. I've written a novella-length book in emacs org mode and using a simple keyboard shortcut ended up with a generated ready-to-upload-to-KDP PDF.

As far as writing tools are concerned, nothing else has come even close and that's with very minimal config tweaking.

I get this comment quite often tbf, but I enjoy the slight variations of configs people share :)