Of course, not everyone is thrilled by them. Our very own Allison Robert, bear tank extraordinaire, has torn out about half her hair (poor Allie!) in frustration from knockbacks messing with tanking. She implores you to use these abilities with restraint for the sake of her sanity. It's a level-headed request that Blizzard hears. They've recently hinted at new Glyphs that will remove the knockback effect from certain spells such as Blast Wave, Typhoon, and Thunderstorm.
How's your experience with knockback effects? Have you used it to kill enemies in Battlegrounds? Used it to escape some pesky Rogue slicing and dicing your butt? Maybe you've even used it in *gasp* an instance and rearranged the mobs that the tank so painstakingly positioned through the pull. How have you been (ab)using knockbacks? What's your take on the new mechanic? Yay? Nay? Art-fay?