Bitcoin is considered one of the controversial issues since people don't know what's bitcoin all about. For some reason, people might think that this organization is illegal, they might think this is a crime job. It is because they don't know what bitcoin really is. They don't understand what's the concept of this organization and how it is used by many to earn money. Bitcoin is not just about earning money, it's not about making people rich rather its also about sharing everyones opinion and understanding about a cetain topic. It is controversial because people who aren't aware of this organization, judging us without further information gathered. They only judge us base on how they see this job, base on their own perception and that's how it made controversial.