[wongarsu]

Cost/GB is three times that of Backblaze, bandwith is generally too cheap to meter (outside aws, gcp, azure who use egress costs for lock-in).

The offer is no doubt competitively prized, but it's no doubt much more lucrative than people using Cloudflare as a CDN for their s3/b2/azure/whatever.

[drip-egg-jack]

You need to account IO load as well, more bandwidth means more requests to the disks and I assume they will use mechanical HDDs for the storage, SSDs are still too expensive to support $0.015/GB. Good mechanical drive can give you up to 200 IOPS and maybe 200MB/s, so they will have to copy the data a lot to be able to increase capacity on demand. Making it free doesn't seems to be sustainable at all.