Note: As I originally composed this post it was far more harshly worded. I've changed that because I felt it was unconstructive, but what remains falls short of indicating the ire this inspires in me.
So far as I'm aware the purpose of Launchpad is indeed to generate buzz. Certainly if it's intended to be used to fix bugs then it's a total failure.
The biggest reason I'm not using Ubuntu any more is not because of the numerous major bugs that slip into every release (though they do give a bad impression about the quality of Linux when Ubuntu is all most people have heard of), nor is it the increasing focus on users so different to me that helping them requires me to fight with the system more with each release (though that is increasingly frustrating), but it's because the way they handle bugs is so atrocious that I can only infer that anyone involved in Ubuntu QA doesn't care about what they're producing. If it turns out that this is in fact because of a load of hangers-on 'helping' despite not being competent to do so, then that really needs to be stopped.