> the ability to read the whole content in the reader instead of having to go to the site. But that depends on how RSS/Atom exposes the content;
It rather depends on the amount of content the RSS _author_ includes in the RSS feed. There's nothing in the RSS/Atom protocol that prevents you from reading the entire article, but some website creators decide to truncate the feed content.
My RSS reader of choice, InoReader, has the option to download the original website which solves the problem. However, I have over 200 feeds and it's rare to find one without the entire content being included.
It rather depends on the amount of content the RSS _author_ includes in the RSS feed. There's nothing in the RSS/Atom protocol that prevents you from reading the entire article, but some website creators decide to truncate the feed content.
My RSS reader of choice, InoReader, has the option to download the original website which solves the problem. However, I have over 200 feeds and it's rare to find one without the entire content being included.