Is being replaced on my Motobecane Fly Ti MTB by Avid under warranty. The LBS never could get it to stop rubbing, they removed it, sent it to Avid, who said, yes, it's F'd, we're sending you a replacement.

And some people here were telling me stuff like 'that's normal, they don't know what they're doing at the LBS', etc.

I got sick of it, told my LBS to give me the bike back when it worked right. They were very cool about it since I didn't buy the bike there. But I buy plenty of stuff from them (just got a new Cervelo from them in February). They contacted Avid, the bike should be back on the trail by late March.