Have a look at toolhaus -
"eBay has indicated that in May, 2008, sellers will no longer be able to leave negative or neutral Feedback for buyers. The merits of this will probably be debated for a very, very long time, but in the meantime, some sellers have suggested that they would leave "false positive" (FP) feedback. Specifically, they would leave positive feedback containing the word "negative" or "neg", as an indication of the type of feedback they wanted to leave.
Toolhaus will endeavor to remain neutral on the merits of that tactic, but we've added a new option to the Negs tool: A checkbox to enable searching for "false positive" feedback, and reporting the total number of those items found. The report is at the end of the Negs tool's output, with the counts of Negative, Neutral, and Withdrawn feedback items. "