THUMBS UP: It's hard not to notice there are three open seats on the San Benito County Board of Supervisors, and that's a good thing. The most recent example, or examples, of this area's dedication to and awareness of civic activism has been the set of forums at which candidates for the open seats have spoken to the public. There was one Sunday in Aromas, the long-running farm bureau gathering at Hollister City Hall was Tuesday, and another forum hosted by the League of United Latin American Citizens is set for Monday. We commend the candidates for taking part and the citizens who attended. Above all, the forums have given all citizens opportunities to learn more about their potential leaders if they so choose.