Works a treat
So many people publish the worst about themselves on SM, that it's a great place to get information on them and likely much faster than something like an Interpol check. If you are posting to SM that you plan to go somewhere to protest something, chances are that the country would rather you stay at home. In fact, if you read the fine print, every country prohibits foreign visitors from participating in protests, movements, politics, etc. The last thing they want is to have to deal with is foreigners in their jails. Language can be an issue, but the person may have no clue how the legal system works in the country and they will have no money to pay bonds, fines or lawyers.
Who wants to bet money against governments having direct access to databases of the major SM companies? They likely have an internal department that does nothing by liaison work with government agencies.
Biting the hand that feeds IT
