I was wondering if there are still person who maintains the algorithm for Bitcoin? If there were? How'd they didn't fix this one since its been revealed 2016. Or, the bitcoin's system allows them those acts which can affect bitcoin itself.

We all know that bitcoin is volatile and we can't deny the fact that even in the market, there is a manipulation by this powerful individual which highly affect its price and even in mining blocks there is. I will not be surprised if we woke up one day and find out that bitcoin collapses.