[xdude]

Well there is another way these profiles could help in SEO even thought it's not directly. Even thought backlinks from these sites have little value these social sites like Facebook, Twitter has massive authority. So a profile which means a page from these sites can make a big impact on your keyword or brand. Like lets say if you create set of profiles targeting your brand or keyword. Soon you will find all these profiles pages rank along with your site for same keyword in Google. Thats no matter which link Google visitor clicks on search result it takes them to your site at end.

As traffic directly from the profile page won't happen unless you optimize it correctly and have a real follower base.