You're thinking grandiosely. It's pretty simple situation thats different from that one.

No one's trying to lay claim to if this individual product "becomes Dropbox", and you're not saying you can build it in a weekend, which is the comment you're referring to.

I think you may be swapping in a bailey of "oh we're arguing about whether this will be "successful"" because the motte of "what is this for, it can't work!?" was obviously stupid, as you've ceded.

The original ftp dropbox comment was about usefulness rather than success IMO. They were saying why is this needed.

With the conraption here. It is not useless, sure, but that is not a high enough bar to use resources to manufacture it or for there to be a market for it. Other than someone mentioned geek consumerism.