After his followers caused a great deal of mischief in Iran, he was executed and three civil wars ensued with his followers who were trying to implement his laws in Iran. Luckily the government crushed the fanatics. Baha’is greatly revere this man and pay tribute to him by celebrating his birthday and visiting his shrine.
2- After the Babis were crushed by the government, the remaining Babi leaders plotted to assassinate the Shah of Iran. All were executed except for one bloke by the name of Mirza husayn Ali Nuri, AKA, Baha’u’llah, the founder of Baha’ism. He was saved due to threats by the Russians of laying Iran to ruins:
Today Baha’is continuously spread propaganda against Iran claiming that they have historically been persecuted in Iran, while historically their leaders were a violent people who caused much mischief and suffering for the Iran populace. These are only a few of the reasons that Baha’is have a bad reputation in Iran.