That's great a discussion. We seriously need decentralized exchanges!
This is my first comment on your post. Started following you from Today. I just read on your profile that you are giving 5 steem daily on your video.
Can you please tell me how you choose the winner? I mean randomly or what? Because I watched your videos & saw that you were getting comments from many steemians. Just let me know that how you choose the winner (Randomly or a best comment)?