SBUX), has been put on the defensive by mobile competition in both the marketplace and the perception of traders. LinkedIn, not used with the same sense of transience, doesn't have to sweat mobile as much. Ironically, LinkedIn's mobile usage, starting from a small base, showed growth. Importantly, it doesn't really matter. And there stands an important difference the media generally ignored. At the time of publication, Fuchs had no positions in any of the stocks mentioned in this column. This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.