User-Submitted Websites With Existing Social Hierarchies

On websites such as FML or Lamebook, all the users seem to know and recognize each other. If someone new joins the site, they’re ostracized and often ridiculed about their opinion.

I want to enjoy being part of a website and express my opinion without being harassed! Everyone’s wrong at least some of the time, and I’m willing to admit my mistakes, if you’ll just let me.