I've posted this once before in the OD, but this thread might not be a bad place to mention it, too.

Those of you who buy or sell on eBay may find this tool to be useful when checking out the feedback of a prospective trading partner:

Negative/Neutral Feedback Tool

It allows one to view just the negative and neutral feedback left for a particular user, as well as any responses that said user has left in reply.

There's also a Firefox extension for it that adds "Ebay Negs!" to the right-click menu. Highlight the eBay ID, right click, click... and there you are.

One might try "importbaron", for example.