That aspect at least is easy to solve by drawing a stronger line between public content and stuff seen by people you actually know. This would be more of a soci

That aspect at least is easy to solve by drawing a stronger line between public content and stuff seen by people you actually know. This would be more of a social change than technical of course. The harder part is figuring out how to handle public content, because there are still innocuous or positive uses for it as well.