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.
Daily Cycling Goals. If you cycle for half an hour five days per week, you can expect to burn 1,500 calories if you weigh 125 pounds and cycle at 15 miles per hour. If you can't cycle this quickly, you'll burn 1,200 calories a week cycling at 12 miles per hour.