Not sure, though the question is whether the bullying is an action that is permitted. It is without question that those engaged in these dangerous and offensive habits well deserve the shame.
But the real question that should be in focus is whether there is a heter according to halacha to engage in these behaviors. That has been debated here numerous times, and probably should not be repeated except for the links to previous threads. So except for the offensiveness, the fact that the halachos are being violated publicly may be a point of discussion – can public shaming be employed as a form of rebuke.
Perhaps some of the CR resident poskim can weigh in on this.