[Plugin: WP Greet Box] Remove Greet Box Text from RSS Feed?

I use Greet Box and have the RSS feed pulled into other services (e.g., LinkedIn and Facebook). When pulling the feed in, it looks like these services are also pulling in the greet box text. Is there a way to make sure that the Greet Box text is not part of the RSS feed so it does not get imported?

http://wordpress.org/extend/plugins/wp-greet-box/