I REALLY need to use this plugin. However, as every other user of it has said, spam makes it unusable. My solution that I hope you add ot the next version is to let us says what level a user needs to be equal to or above to enter the links. I would only allow approved users to enter links.
From the comments on your website, I see that the new release has been postponed seemingly indefinitely. So, can you (or anyone else out there) tell me how I can hack the plugin so that it checks the user level?