Actually, he has become more arrogant and ignorant. Zuckerberg is indeed a great mind behind the simple project that has turned into the Facebook but his reason for banning crypto ads was for selfish reasons. These selfish reasons are still being kept in secret and they include creating of their own coin. Something has for sure gone wrong in the Facebook company and the income that they get has supposedly fallen too much from the time that the banning occurred. Greed is what drives the company now! The loss they suffered from the banning of the crypto ads hit them hard and for the joy, for many of the people, ads are back.