Originally Posted by Marino sumo

I see Youporn is obviously a trademark.
But does this affect similar names or the name youporn with prefixes or suffixes?
i.e.
if I would buy some domains (if they would be availables) who names are related to youporn as, for example, youpornster, youpornfuck and so on....would it be a problem in future starting a site with those ? or the fact that "you" and "porn" are normal words in english language won't create any trouble?