note: this does not break Google's CAPTCHA, as you can see in this screenshot.) E-mail addresses for reply are Gmail accounts conveniently created by Jiffy Gmail Creator (ed.IP proxy sites are used to post from a wide range of IP addresses.Random text is added to each spam message to fool Craigslist's duplicate message detector.It not only posts to Craigslist automatically, it has built-in strategies to overcome each Craigslist anti-spam mechanism: CL Auto Posting Tool is one such product. Several commercial products are now available to overcome those little obstacles to bulk posting. Letting users flag postings they recognize as spam.Using a CAPTCHA to stop automated posting tools.Requiring users to register with a valid email address.Blocking excessive posts from a single IP address.This year, the spammers started winning and are taking over Craigslist. Spam on Craigslist has been a minor nuisance for years. Perhaps that's why I was so disturbed by John Nagle's wartime narrative of the raging battle between Craigslist and spammers. I consider Craiglist a generally benevolent public service. Unfortunately, these same characteristics also make Craigslist a particularly juicy target for spammers and evildoers. Have you ever used Craigslist? It's an almost entirely free, mostly anonymous classified advertising service which evolved from an early internet phenomenon into a service so powerful it is often accused of single-handedly destroying the newspaper business.
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