Just to extend on that, do you host any sites/forums for anyone else that might have linked to Dreamhost?
If you have any forums hosted, for you or anyone else, you could try searching them for "dreamhost."
One more thing... if your screen name here is the same as your DH user name, maybe you helped someone here before and they entered your forum name as a referrer. Technically, that could even be the case if you use this name on any forum and someone entered it as a referrer, just because that's what they know you as.
Or how about someone that knows you (and your email address), that might have signed up and entered your email address?
Or it could be one of your enemies trying to mess with your head. I need some enemies like that.
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