He was involved in the process of building multiple maps for Advanced Warfare. This might surprise you, but a developer working on AAA titles will have multiple people working on each aspect of the game, and they won't be working in isolation.
Quite obvious you don't like the guy and that's fine, but suggesting that he's clueless when it comes to aspects of the game development process is ridiculous.
got nothing against the guy just don't see how he would know intricate details about game development from working one time on a few maps and being a community manger.
I don't really care about streamers, I find it hard enough to play games my self, never mind watching someone else play them.
of course I know who the DR is I wouldn't be surprised if he was more well known than most so called "celebrities"
but with these people there's always a lot of hero worship, it's like people think they are gods for the most part they don't know more about gaming than the average enthusiast which a lot of people on this forum will be.