how is this different from sia or storj - a PoW based coin with some Dropbox feature
BURST coin with proof of capacity if far more interesting in this area
not to mention FileCoin is lunching as we speak and where the storage part is not just some addon but a crucial part of the blockchains consensus mechanism
You didn't read the white paper at all, did you.
There is even a section; Filecoin, Maidsafe, Siacoin, and Storj