Its gonna be one of the simple answer that you will ever receive on this thread - No. You can't. You can't stop someone who is sitting somewhere on his own world using his/her cell/ keyboard to troll the entire bengalis. Physically or mentally you just can't stop them. What you can do other then that is that just try to ignore them and try not to be one of those. Besides, Twitter has always been brutal. Twitter/insta/facebook too. Its pretty normal out there.
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