OVH tried to do that with their Hubic service, and people were just abusing the limits, sending in data from multiple machines 24/7 (https://translate.google.com/translate?sl=fr&tl=en&js=y&prev... ) . They now limit at 10TB for the old "unlimited" price.
This might explain this clause: https://news.ycombinator.com/item?id=9269908