I'm tired of these people in the Dim media crying about anyone (Trump, Russia, Obama, Cambridge Analytica, whoever) exploiting Social Media platforms. They are so stupid. People who go on these platforms WANT their "personal" information known and to some extent acted upon.
When there's an incident people pull information about the alleged victims and perpetrators from these sites. Most people probably have everything set to "public" if that's the default. Of course, somebody is going to scoop up data en mass and use it.
Social Media platforms depend on this availability. The more eyeballs looking the more they can charge whoever wants to pay. That's one reason there are many fake Twitter accounts. That's why they don't care who they collect money from.
The Dim media hand wringing is out of control.