Earlier quoted context omitted.
Dropbox feels like the wrong thing to compare it to. IPFS isn't really for storing files privately. Public S3 buckets would be closer. I don't have any numbers to say if it's overvalued based on how much public cloud storage there is (I wouldn't be surprised if it were though).
Storage costs are hyper-deflationary. We have a NAS on a desk with 27 terabytes of storage and it cost under $1000 (with drives) and consumes about 40 watts of power. Ten years ago this would have cost closer to $5000-$10000 and consumed hundreds of watts of power. We bought it about a year and a half ago and already we could replace it for less than $500. The idea of distributed storage at the edge is interesting bu…
To do so equitably without the ability to be gamed is quite difficult. BitTorrent is quite game-able so we end up with closed communities and private trackers. To handwave these adversarial concerns away is unhelpful. Implement a s/kademlia DHT with all of the security conventions in latter papers and it becomes clear how hard it is to do safely. I am confident IPFS's DHT could be quite easily harmed (most are implemented around hash bucket closeness) if it were valuable enough to do so.