Great work in what you guys have achieved.
The main image server for Steem was provided by Steemit Inc, so we’ve had to move to our own image server to support Hive.
Would it help at all to use the Sia chain SkyNet file storage for images so that we know they will always be available? Of one of the similar blockchain based file storage systems. There may be a transaction cost but with any storage there is a cost.
I am sure that Steem will be to the Bittorrent based filesystem to keep Justin sweet.