Awesome feature, especially for witnesses, because usually they are running tons of various Hive nodes to serve the community.

{(Amidala meme: "Because they are running tons of various Hive nodes to serve the community???")}

For example, I can run a few broadcaster nodes on cheap VPS servers, as they no longer need a huge amount of storage. It will also improve my block_log serving service, as it will be much easier to resume downloads, even if you had a different source of blocks before (the blocks are the same, but because of the compression, their storage can differ between the nodes).