> Jane goes to a party but doesn't want anyone who wasn't there to know.
It's unnecessary to present this as a problem of social media. In fact anyone with a camera will present a problem to Jane, as they can make photos and show them to anyone, in real life. At least in the case of social media there are some technical solutions to limit that, but you can't go preventing arbitrary people from accidentally divulging that you were at some party.
Perhaps social media do amplify this situation because the information is more readily concentrated and reproduced, but the fundamental problem you present is the expectation of being able to control information when it can't be.
The problem I present is that Jane doesn't want anyone to know because she doesn't want undesirables, such as coworkers or family, to know. It's not likely that someone will vindictively send pictures of Jane having what they, if they were at the party to take pictures in the first place, likely consider to be harmless fun. The problem is unintentional damage, which, as you say, is amplified by social media.
That said, the party example was weak. I opened with it because it was an easy example of oversight on the part of the user.
This is a problem with social media, though. Before it, there would be a picture of me at a party that no one ever saw. Now, there is a searchable by name picture of me at a party that has been tagged along with every other picture of that party, with times, location, and other attendees determinable in the same way for each.
By the way, this will also be a picture that no one will see, except for the people that are interested in the fact that I'm going to parties, the people that I wanted to hide that fact from. The picture hasn't been made more interesting, it has just been attached to 100 or more indexes, with no lifespan.
It's unnecessary to present this as a problem of social media. In fact anyone with a camera will present a problem to Jane, as they can make photos and show them to anyone, in real life. At least in the case of social media there are some technical solutions to limit that, but you can't go preventing arbitrary people from accidentally divulging that you were at some party.
Perhaps social media do amplify this situation because the information is more readily concentrated and reproduced, but the fundamental problem you present is the expectation of being able to control information when it can't be.