What if registered users of my directory are posting duplicate content and there bio is included. If I post on my directory then what type of issue I would have to face or there is no issue, as i have seen many directories are using duplicate content, so is there any rule or major effect on the business. If I use duplicate content then the pages would be indexed by search engines or not, or people would find any keywords then my content would be delivered or not, I mean how I can get SEO advantage? If duplicate account is detected then where would be complain would be sent to my contact address that is published on my website or to domain registrar or web hosting service providers or government or what?