[Simon]

Something to consider. Google says that doing anything that manipulates their search results is a violation of Google’s Webmaster Guidelines. Basically any link building or link profile sculpting fits this criteria. So it's quite possible that simply using their disavow tool is a clear signal to them that you're engaging in practices that make your site a target for being devalued or penalized.

In general, most adult sites have link profiles which prevent them from ranking well in the SERPs today. And trying to fix that is manipulating the search results. Catch-22.

:-|