A publication is a collection of content from various authors/creators, usually with the permission of the author for their content to appear in it. Personally, I would not call user-curated collections like e.g. on Flipboard a "publication", since the idea of a publication is for content to be first published, not merely shared, listed, or linked. The potential censorship risks of DNS have absolutely nothing to do with publications not publishing everyone's articles. Not sure what you meant to say there. I meant that when events are spread across multiple relays to begin with, it's much harder for people to lose access to content, when a single relay goes down for whatever reason (can also just be infrastructure issues).