IS sound issue with the 200 & 800mm perhaps.
Maybe, but 800/5.6 and 200/2 owners are few so I doubt a camera wide re-call.
No matter how few owners there are, if that problem exists and it's a mechanical problem that needs to be fixed in the camera, they have to recall everything out there right? It doesn't make sense to me if they just recall from those who have the lenses in question. So you'd prefer to send in yours later when you plan to get 200 f/2 IS ?
No, I have the 200/2 now. Your point is valid though, they'd have to fix them all, not just a few. There is no way for Canon to contact each owner, they don't know who we are, in more ways than one.