We all know that as each coin has two sides, bitcoin too has two sides, being so advantageous and beneficial to the public because somewhere has dark sides and I think this is the only reason why conflict is going against of bitcoin, as we all know that bitcoin is a decentralised crypto currency and thus there is no such proper authentic regulating body over the bitcoin who could keep eye over all the bitcoin activities and specifically the illegal one thus leading to its illegal use like in selling drugs, explosives, money laundering etc and this is the only reason for conflict against bitcoin.