What do you think exchanges in long run, exchanges are the weakest point of bitcoin as most of them are centralized. Do you have any other ideas or plans?
You have some options out there if you don't trust the "normal" exchanges currently available. You can opt for peer to peer exchanges, like localbitoins, or you can go even further and use a decentralized exchange. Peer to peer exchanges have the advantage of being quite easy to use, and you normally just need to register on a website. On a decentralized exchange, that operates on blockchain you will need to download and install some kind of application, and normally they are not as easy to use as the typical exchange like coinbase.
I do like the idea of decentralized exchanges. They can't really be hacked, and the users is always in control of his own money. As the confidence in the blockchain grows, and it's applications, I think that we will see more and more decentralized exchanges being used.