Related:
Here is an article describing the speech Watterson gave railing against licensing. Note the different approaches of the two cartoonists on opposite sides, Bill Watterson vs 'Beetle Bailey'/'Hi and Lois' creator Mort Walker.
"Walker and Watterson also had very different approaches to dealing with the public at the three-day festival. Walker agreed to numerous requests to do autographed sketches and pose for photos, while Watterson declined to give autographs and requested no photos and no taping of his remarks."