Joen Asmussen

<p>This plugin appends a customizable message with a link to every post in your RSS feed. This can help discourage robots from scraping your content (automatically copying and posting it elsewhere). This is the default message:</p>
<pre><code>[postname] originally appeared on [sitename] on [postdate].
</code></pre>


Anti Feed-Scraper Message

Discourage robots from scraping your RSS feed.

Jerry Stephens

<p>Adds WP functions, copyright, and more to your RSS feed items.</p>


RSSupplement

Adds WP functions, copyright, and more to your RSS feed items.

Anti Feed-Scraper Message vs RSSupplement