> If users object to showing their address publicly, add a free-form text field so they can tell you which name they want to use. Although I mostly like it, th

> If users object to showing their address publicly, add a free-form text field so they can tell you which name they want to use. Although I mostly like it, there is a potential identity theft security issue with that approach. Anyone could pick "jmillikin" (or your email address if you have chosen to display that) as the display name. It is usually possible to set any image as an avatar, so this point might be moot anyway.