Like all the other methods using free stuff postings but this time you autorespond using their own chip on their shoulder against them. Have your autoresponder say "Thank you for your response, but unfortunately Craigslist has been tarnished by scam artists stealing personal information using bots. Before I give out my address I need to verify you are human and not a spam bot. Enter in code and once verified I will email you with pickup address. Send them to a blank page with only the cakesliced zip area. Even beter would be for you to find an HTML compatible email and slip the cakesliced code in the mail. Still looking for that. If I find it, wow. Enjoy it.