New design to prevent people from robbing projects without editing them. If they decide to remix with no changes, the person playing the pirated version will be locked out when when they answer the question about who created the project wrong. Make sure you put the code block in a reasonably accessible area or nobody will be able to make improvements!
This project combines a sensor block and an 'if-then' block that will stop all scripts if the player enters the wrong username. A better version might tell the player who originally created the project, thus also robbing even negative attention from the pirater.