I'm just a amateur hobbyist that currently and mainly takes pictures of my young family and extended family.
Firstly, I like the idea of Cloud Storage (I was an Adobe Revel user initially) as I don't have to 'mess about' with external hard drives (although I frequently archive onto these as another back up, but apart from that they are never connected).
Additionally, I can light edit at my convenience and collate photographs of events and share them with the family. Also, we use Lr CC all the time to view photos on either the laptop or mobile device, the children love going into the various Albums.... a trash can feature would be nice!
So it really suits us. I once read a dpreview thread about Cloud Storage and one post was "ridiiculous.... why would I ever want my photos available anytime anywhere" to which one reply was "well, it's not like you ever want to look at your photos!".
Obviously, all these things may not apply to many, especially Pros who just want to move on from a project, but users require different models.
I only have 80GB up there anyway..... I assume you mean 17TB by the way Neox?
So - to my question here: Why do people want to store massive libraries on Adobe servers?
It's pretty simple: To be able to access, edit, and use any image on any device or computer without having to think about where they are. A lot of people don't want to muck around or have to think about it and just use their images. They also don't want to worry about backups, filetypes, folder structure, running out of hard disk space, etc.
It's not a way of working that works for me with my many terabytes of images and more complex organization, exporting and keywording needs than CC offers but I can see the attraction.