Should o­ne discourage others from listening to these stations?

Answer

It is Waajib to discourage others from listening to the haraam radio stations. The Wujoob applies when o­ne has some jurisdiction or some influence over those to whom the naseehat is directed. Amr Bil Ma’roof Nahy anil Munkat is Waajib. It is part of this sacred obligation to discourage Muslims from listening to the evil stations.