The social networking site I explored was Instagram. I have an Instagram account, but it is set to private. If it's not set to private many people can follow you and see what you are posting. I can be tagged in other people's posts/comments only by people who are following me. I can also only tag people I follow. If they want to see the post they would get a notification and then send me a request to be followed. I prefer it this way so I have control over who is accessing my account since most of it is family pictures.
This design choice Stickman Hook adds an element of replayability, as players can experiment with different paths to achieve the fastest time or most stylish run.