If a company or individual posting to craigslist is having trouble with competitors, fake posts, harassment, etc., there are a number of ways to get things done. I'm sure that Craigslist, like every other site, makes people jump over a few hurdles before they can get in touch with a live human.
Calories Burned. On average, a 150-pound person burns 91 calories biking for 20 minutes at a leisurely pace of less than 10 miles per hour, according to the Calorie Control Council's Get Moving Calculator. The caloric burn increases to 136 calories when intensity escalates to a moderate pace, 12 to 13.9 miles per hour.
Keeping a brisk pace during bicycling burns more calories, whittling away body fat. Cycling at less than 10 mph burns only 235 to 370 calories in one hour, depending upon your weight. Add 2 mph to your pace and you burn 350 to 550 calories per hour, enough to lose up to 1 lb. of body fat per week if you exercise daily.