Moreover: if a host goes offline for a long time or proves he is no longer keeping your data (and no trust is needed here, because hosts need submit proofs of storage to the blockchain), your client will automatically recruit a new host and upload the missing chunks of files to it. And you don't even need to keep that file locally on your computer for this to happen. It is called File Repair.

Why negative feedback? Signature spammers that post the first thing that crosses their mind, traders with their tribulations that can't see every other coin has dropped too because BTC has duplicated its value and that money has to come from somewhere, eventual trolls...

This technology is out there, it is real, it is working, it has very good chances of becoming the standard of online storage...