Talk:Tutorial: Proxy Connection/@comment-26134970-20151201101034/@comment-26091666-20151201103616

SNS is short for Social Networking Services (wikipedia link). Facebook amongst others are popular Social Networking Service examples. As well there are others such as the ones mention in this blog entry.

I personally was never prompted to enter my SNS details, and was able to log in fine. I do recall that at login there were things like Facebook and Google+ account for signing in. I never used those, as well there were some people reported that their accounts go resetted for some unknown reason when they tried signing in through those options.