A little more research: I checked out "Kayaker Rescued Delaware Bay", a story from Sept. 30/Oct. 1, 2012. A total of 21 responses, of which 18 were on non-kayak sites, and 3 were on kayak sites. Another story, "Kayaker Rescued Coos Bay (Oregon)", a story from April 10, 2012, turned up 9 responses, none on kayak sites; all were on non-kayak sites. A VERY tiny sample, but it suggests my hypothesis is correct that the media focus on kayaker accidents, rescues, fatalities more than on other sorts of boating mishaps. More research is needed; Peter's hypothesis needs investigation. Probably both he and I are correct.