What the hell?

[HighSociety]

Has anyone ever seen this? my site has been taken and placed on someones domain who I do not know. They have it exactly as I do. Why would someone do that? To send me free traffic and not even tell me? I just updated a few things and this person has already updated it as well. the site they are using is hard-sexxx.com . mine is madetoordervideos any info would be great, thanks