The idea that 'reciprocity is critical for bonding' appears to be better accepted by teens than by 'suited humans' judging by the tenor of Dr. Cornwell's response. I believe the comment that was criticized was made by someone else, and was based upon informant interviews:

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Consequently youth do have a sense of stigma around online socializing in cases where online communication supplants face-to-face interaction. At least this is how I interpret my informants when they talk about all the benefits of using personal media (e.g. easier to admit things and be open, and the flexibility of online socializing), yet still emphasize that face-to-face interaction is their preferred mode of socializing. - Marika Luders, March 1.

There does appear to be some imprecision in several places here regarding the attribution of stigma. Stigma by whom? The comment by Marika Luders appears to refer to peer-group stigma applied when non f2f interaction becomes preferable to f2f - a sense of social dysfunction, perhaps, compared to a more acceptable norm where online is adjunct to in-person. Dr. Cornwell's comments, on the other hand

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My research, observations and common sense tells me that this assertion is nonsense. The fact is that there is a stigma attached to not having the ability to cell phones, text messaging, email or chats.

clearly address a completely different issue. He is not talking about an imbalance, but about an ability, a literacy level. I see no reason to belittle others' comments, especially when the original messages have been misinterpreted. Carol Perryman MSLIS TRLN Doctoral Fellow School of Information & Library Science University of North Carolina at Chapel Hill "From then on, when anything went wrong with a computer, we said it had bugs in it." -- Grace Murray Hopper, on the removal of a 2-inch-long moth from an experimental computer at Harvard in 1945, quoted in Time 16 Apr 84.