I have checked the richlist recently, some of them are from exchanges. More than 50% of BTC are holding by the top 50 people or so. Can't remember the amount though.
I have two question-
1. Exchanges are being the giant although BTC holding by them are from customers. Still it's possible that they are trying to be a controller of the crypto community which is very bad I guess.
2. If top 50 people hold 50% of BTC and BTC becomes the global currency, we may face once again the previous era. Being slaver to certain people.
Think at from the point of macro economy. In my opinion, it's something we need to talk.
Well the biggest holders of cryptocurrency are the exchanges since the deposits of people are going inside their wallets. But exchanges are not controller of the crypto community but they are actually relying on the crypto community to earn profit. They earn through our trades and thus instead of controlling they are actually attracting more people from the community to trade in their exchange. The possibility of them being a controller is when they are faking volumes and is affecting the overall value of bitcoin at the market.