So again, where is that line in the sand? Is it as simple as ---if you can pull it off in lightroom it's real, but the moment it hits photoshop it isn't? Oh wait, there's that spot removal tool in lightroom...
I think we all could agree on that with digital there is no binary "line in the sand", but for me it's good to get an awareness where the grey area is for me and other people - and one point certainly is adding information that wasn't in the original shot, while heavy lr postprocessing or single-scene compositing (hdr, blending) and some spot "cleaning" imho is ok and qualifies as (digital) photography.
Syl Arena writes (I can't remember the exact quote): "I'm a photographer, not a postprocessing artist" and that's why he tries to get it right in camera and not in photoshop.