tedster - 5:05 am on Mar 28, 2010 (gmt 0)
Parasite content usually refers to content inserted on a domain without the owners knowledge or intention. But I assume that this content entered your site through a normal user-generated content mechanism, correct?
If that's the case, I am not aware of anyone getting a major penalty simply from "citations" rather than actual links. Not saying it can be so - just that this would be the first such report I've run into.