common courtesy
Dear craigslist.com buyers,
When you send me an e-mail asking about my item and I send you a reply, it is only proper for you to send me a reply indicating whether you actually intend to buy the item or not. As a seller, it is very frustrating when we receive e-mails that seem to go nowhere. Did you even get the e-mail? Is my account suddenly not working? So please, next time you try to do business, be courteous.