We miss the old 16th Street Mall. We miss Skip and Amy, the nail-in-nose panhandlers. We miss the skaters at Skyline. We miss the homeless people, who are increasingly being pushed out by metro boosters who don't want to scare away tourists. We miss them because if there is one truth of people-watching, it's that only interesting people are worth watching. Tourists are not worth watching: When's the last time you saw one do a good gross-out trick or ride a handrail on a longboard? Better get a seat now, before the Denver City Council bans panhandling altogether from the mall and several blocks around it, and turns what had been the city's greatest voyeurism spot into a sterilized tourist playground.