The difference between the GP's and your suggestion is who takes the risk. Both protests would risk getting a few people in nasty situations with the authoritie

The difference between the GP's and your suggestion is who takes the risk. Both protests would risk getting a few people in nasty situations with the authorities. In the GP's plan that risk lies with the protestors themselves, in your plan it's the random xbox playing kids you are suggesting to report on. Making the problem worse before it gets better and possibly introducing a chilling effect causing the opposite of what you intend to accomplish.