Jonnie Hallman decided to add a little link to the bottom of each RSS entry:
It’s just a
mailto: link, so…
This seemed to strike a bit of a nerve…
I think the idea is pretty cool, particularly on a site without on-site comments.
If you have access to your own RSS template, this should be a fairly easy thing to add. On a WordPress site, you could always add a filter (or other ways). But I happen to use the Yoast SEO plugin, and this is a default feature: