Blind reply for classifieds/ad owl

Wish there was a way to Blind reply to ads in adowl-like in craigslist or backpage.com. Of course users would still need to register as a real person but a blind reply would allow them to click one button to inquire to the seller or service provider without giving up their phone number or private email address right off the bat. With an option like that, our product would be on the same level but "spam free" and far superior to other online classifieds sites. Way easier for you to sell more companies on too :)