The Columbian is testing a new system that requires readers who wish to comment on Columbian.com stories to use their Facebook account. Here are some of the most frequently asked questions about the change, so far, and our responses. Technical questions are near the top and questions about the reasons behind the switch or our comment moderation are down below.How do I report a fake Facebook account?It’s against Facebook’s terms of service to provide false personal information on a Facebook account. You may report a fake account by clicking on the user’s profile, then clicking “Report/ Block this person” at the bottom left of the page.The Columbian wants to ensure commenters are using their real names and identities. Please help us by reporting fake profiles to Facebook.How do I report a violation of the community guidelines? Columbian staff need your help monitoring comments for violations. Please send a message to Matt Wastradowski or Libby Tucker with the name of the user, the content of the comment and the story it was attached to. Why is “Post to Facebook” the default setting for comments?We are using the Facebook comments box social plugin, which offers us less control over default settings than we would have if we were using the open graph version of Facebook comments. This allows us to test the system before we commit more time to development.Why can’t I see the comments?Comments on our site are public. That means anyone can see the comments, even without a Facebook account, as long as the Facebook application is not blocked by their server — a common practice by government agencies and some private employers. If you can’t see the comments, ask your IT department if it blocks Facebook. But for most readers, it will not be a problem.