One of the things that bothers me the most about @busy is that it seems that they are hardcoding their own server provided IPFS links to images. (Correct me if I am wrong.) While it works well, what happens if the busy IPFS node goes down?
Furthermore, in the past I have experimented with Video Streaming over IPFS, and having a cloudflare link to the media asset would have definitely helped it resolve. However, I am interested in knowing about the durability of these links - as in what happens at the high-water mark of GC?
I am also interested in seeing some REAL benchmarks!
The inner workings of IPFS (including your question about "what happens if...") are very well explained in the article linked.
TLDR -> a content piece, identified by a unique hash, like an image or video, may be stored by multiple hosts.