In some countries it is allowed to vote, but your employer or landlord may request you to prove to you that you voted for the „right“ guy by sending them a pict

In some countries it is allowed to vote, but your employer or landlord may request you to prove to you that you voted for the „right“ guy by sending them a picture of your filled out ballot. A feature like this (properly implemented) could actually be great for those countries. The slippery slope argument still applies of course.