The author is explicitly referring to instant messaging, SMS, and the like -- modes of communication that are much more similar to spoken conversation than pre

The author is explicitly referring to instant messaging, SMS, and the like -- modes of communication that are much more similar to spoken conversation than previous forms of text communication. I have definitely seem some of the trends noted by the article. I think you are getting caught up thinking about popular online mediums that can be more similar to letters and publications (you mention message boards). Taking the time for proper punctuation and formatting is more important when using these mediums.