My internet isn't fast enough to constantly stream games
It would be cool if I streamed testing games, but I don't think we would have enough viewers to really take the time to watch me test.
If our community was larger and we had more people writing guides on a regular basis, we could schedule streams throughout the day.
So maybe some day
Remember we are really small. Not only is the Linux gaming community small (in comparison to Win & Mac) but we are mostly focused on Wine/PlayOnLinux gaming. We are the minority, unfortunately