Haha... I wasn't on Hacker News then, so I beg your forgiveness :)
That's funny, but as someone who still does not use drop box, NFS shares seem a lot easier to me than setting up drop box. I think I tried drop box once but I found it more onerous to log in than to type mount /mnt/nfs , so.... I guess I'm not the target market (and that's okay!).
The end result is the same as hosting on S3 + CloudFront, it just saves you a lot of trouble setting things up, makes things just work, gives you nice features like lambdas, A/B testing, forms, authentication, etc etc for free, and just makes your life super easy.
Basically, if you have a repository with your Jekyll (or whatever) site, just add it to Netlify and that's it. It's served, and will automatically update when you push.