Nick I have only looked very briefly at your site so I don't have a lot to say about it right now.
When I took a look at it, I quickly remembered something that was in the news recently that was related to this type of an issue.
A married man pretended to be a single United States Marshal. He dated several women over the past number of years.
Some of the women found out about each other and about him. They got together, told his wife about him, told the authorities and started a website to warn other women about him.
Here is a link to an article about all of this
http://www.msnbc.msn.com/id/13078975/
This did receive a lot of recent news coverage, so a lot of people are aware of it. When some of these people see your site, they will remember this and be aware that it is similar to what was done by those former girlfriends and might have an interest in what you offer.
Even if that weren't the case, there are people who just feel better when they get even with someone. There are also some people who don't think that is the best way to handle matters.