As someone who likes following pro Starcraft and League of Legends, I really appreciate what Twitch gives us access to. I've heard people groaning about Twitch in favor of Own3d, but I never understood the negativity towards Twitch. I hope they keep it up.
YouTube seems to still be a secondary place to stash recordings of streams, but if they take the un-Googly step of actually courting streamers personally and sponsoring tournaments, they could make their streaming community more significant.
Do you mean that they had plans to have a wider base of users and have restricted themselves to just professional players?
Edit: I stand corrected; I'm not sure why the site is up but Azubu seems to have been owned by criminals/a front for criminal activity: http://www.teamliquid.net/forum/viewmessage.php?topic_id=406...