Speaking of advocating RSS, I was trying out Nikola [0] for static site generation and found that they have a really nice-looking RSS end-point [1] that is viewable both from the browser and an RSS reader. Looking into the XML, it turns out it's called xml-stylesheet:
<?xml-stylesheet type="text/xsl" href="assets/xml/rss.xsl" media="all"?>
And I would argue that this is an excellent way to introduce new readers to RSS: instead of the browser popping up a download prompt, you can make your RSS feeds themselves a dedicated page for advocating RSS, in case an interested reader is browsing through the links on your site.[1] https://getnikola.com/rss.xml (Open it in your browser!)
[2] https://github.com/getnikola/nikola/blob/master/nikola/data/...