You raise a valid point. I think I both agree and disagree. Shadow profiles do exist and even if you do not directly participate, more social family or social circle member may choose to tag you for one reason or another. I absolutely agree that as individuals we bear responsibility for choosing being part of the mob, but... and I think I used that comparison before here.. have you ever been to a baseball game? The cheering crowd can rouse even a person like me who is there for no reason other than a social obligation. In other words, there is a reason why mob mentality is a common phrase.