As a warrior tank since vanilla, I fondly recall the days when crowd control was not just a matter of convenience, but necessary for survival (heroic Shadow Labyrinth or Shattered Halls, anyone?), but in WotLK, it seems to actually make pulls harder in randoms. CC is most effective on guild runs where voice chat can be used to help coordinate things, but in pugs, the lack of quick communication makes it a chore. Occasionally, before I have even finished typing "Can you freeze square on this pull?," an impatient hunter has already pulled all the mobs with a multishot and now expects me to rush to pick up them up. Luckily, this situation is rare, but it does happen. The real issue with using CC these days is that WotLK has made DPSers accustomed to simply AoEing everything down on every trash pull. As a result, tanks are forced to open with AoEs of their own to prevent mobs from scattering immediately, which in turn breaks crowd control, and so on. This approach is neither elegant nor challenging, but it works fairly when if everyone is on the same page. On the other hand, when CC is used, everyone has to slow down and avoid using any AoEs, which increases risk of heal aggro, especially if the healer is inexperienced and overheals. Ironically, trash pulls in randoms these days actually seem faster and smoother when no CC is used, which is a shame. I chalk it up as an unfortunate byproduct of the WotLK era play style. Here's hoping Cataclysm will introduce some new mechanics that favor a return to precision over brute force.