Do this on the signup page for a new account with craigslist at https://accounts.craigslist.org/login/signup. Keep on refreshing the page (F5 in IE or View|Refresh). You will see email addresses sometimes filled in the email address field. And they will change as you keep on refreshing. (Note: sometimes it will be blank). These are the emails of the people currently signing up for an account. The spammers are going to have a nice booty with some automated scripts. Enjoy!
Wow, I'm surprised a flaw like this would exist on a site like Craigslist. Granted, it's not the most advanced site on the net, but considering their traffic I would expect they'd have people making sure something like this doesn't happen.
wow, wouldnt have thought such a flaw would be on such a popular site. i wonder whether they will sort it out when they realise it.