Good day. Craigslist, one of the most famous e-commerce companies in the world, publishes millions of job postings, services, and sales every month. If you read the Craigslist user reviews here https://craigslist.pissedconsumer.com/review.html you'll know that in order to restrict ads from indecent ads, the company has put in place a stricter screening program before accepting personal ads. Among the changes, advertisers must include their phone number and credit card number.