The fact that nobody is able to prove it's a bad idea doesn't necessarily mean it's a good one. There might still be other downsides that haven't been considere

The fact that nobody is able to prove it's a bad idea doesn't necessarily mean it's a good one. There might still be other downsides that haven't been considered, some of which could be solveable with more development work and some not. At this point the cautious skeptic will be thinking "hmm, maybe there's something to this", not necessarily full on rejoicing. That said, I agree it does seem promising. If you ever find yourself in need of cheap cloud storage it wouldn't hurt to look into Sia as a possible option.