The concept of having an RSS feed from an ArcGIS Hub site is great. It is very useful to be able to get a listing of content.
The RSS feed would have a much greater use case if the RSS feed would be triggered with a data update. If this capability existed, I would promote our users to use RSS to be notified of data updates. This would save me time from having to manually send out those data update notices.
I envision that any time a hosted feature layer is updated (e.g., via Overwrite Web Layer), the RSS feed for that layer would push an update.
Thank you!