HelpGlobe is a Question and Answer site that I own and developed. I'm thinking of adding social networking features, that allow people to invite friends and non-members to answer questions. Now I have a few dilemmas: * Should I allow people to have private questions, that others can't even search for? * Should I allow anonymous questions, so that people don't know who asked it? * Should I allow people to answer without registering to the site? Thanks for any feedback.