Cursing the enemies and oppressors of ahlulbayt (as) in public, allowed?

Al 'Iteqadat

 وقيل للصادق ـ عليه السلام ـ : يا ابن رسول الله ، إنا نرى في المسجد رجلا يعلن بسب أعدائكم ويسميهم. فقال : ( ما له ـ لعنه الله ـ يعرض بنا
  
And it was said to al Sadiq (as): "O son of Rasool allah (pbuh), verily we see in the mosque a man shout with insults to your enemies and naming them." So [Imam (as)] said: "What is wrong with him? May Allah (swt) damn him, (for) presenting/exposing us (to danger)."