Adding a captcha for listing inquiries?
We have been getting a shocking number of scammers contacting people through their listings. Is there some sort of captcha or security measure I can add so that anyone contacting a lister through has to verify themselves? Right now, when you click on "Contact Owner", the pop-up form just has three simple fields and no security measures or verification required. We don't want to have to have people register for the site in order to inquire because then we get a rash of fake accounts.