Keep Certain Authors' Posts Out of Feeds
Leaves posts by the authors you list, such as guest writers or an automated account, out of your main feeds, while their author feed and the posts on the site stay available.
Snippet Library
RSS Feeds snippets for WordPress
Snippets for WordPress RSS feeds: add featured images and custom post types, delay publishing to feeds, credit your site on scraped content or turn feeds off. For publishers and podcasters whose readers follow along by feed or email.
Remove Category, Tag and Author Feed Links From the Head
Stops WordPress from advertising separate feeds for every category, tag, author, search and archive page, while keeping your main feed link.