RSS feeds seem to be the breakout technology for the year. With more users turning to them for driving traffic to their site, it's no wonder that a trail of RSS feed spam is following in the wake. A careful editing of your RSS feed could make the difference between being classified as genuine content or RSS spam.
RSS search engines are just beginning to pick up steam. As more RSS feeds become searchable, the number of visitors will increase and spam is sure to follow. It is an unfortunate side effect of free communication. While RSS users can typically unsubscribe to feeds they deem as spam, browsing with keywords in an RSS search engine is where the problem arises.