Should motorcyclists wave at scooters?

Here's a link to a piece by Mark Rutledge, a Greenville, NC, Daily Reflector columnist who happens to be a motorcyclist. He's commuting to work even in 30-degree December weather. And he sees that the rest of Greenville's motorcyclists have parked their bikes. But the scooterists...

http://www.reflector.com/local/content/news/stories/2007/12/22/Rutledgecolumn.html