Think it's important we set the context to be around Arch Conf, where we're talking about hosting recordings from the conference. In this case: Yes, if they do

Think it's important we set the context to be around Arch Conf, where we're talking about hosting recordings from the conference. In this case: Yes, if they do run their own servers for storing the content, they are self-hosting. No, doing your own peering is not needed to be classified as self-hosting. No, you don't need to run your own data center to be self-hosting. Unless you want to self-host the servers themselves, then yes, running your own data center is needed. I think the most important point is "hosted" vs "self-hosted" here, where hosted is letting someone else run the servers where you put the content, while self-hosted is you running the servers where you put the content.