This post in Techdirt was of particular relevance to social networks.
One of the challenges for any social network like Ecademy is proving the identity of the members. Some (and Ecademy is one of those) require users to use their name and actively remove the obvious falsely named individuals (Mickey Mouse....) but a determined individual can evade the limited checks it is possible to do.
Revealing identity is a different issue though isn't it? If you go to a site that allows anonimity then I would expeect to be able to maintain it and not have it given away 'on suspicion' but guess that is the workd we live in.
Most people in a social networking context are wary of anonimity because it suggests something to hide, but sometimes we do just want to pass comment as you might if asked your opinion by a street survey.
I guess we just have to write and o everything on the assumption that others will see it out of context and that it will be linked to us and our individuality. Hey ho....