message based contact

We’re doing away with the email addresses and phone numbers in traditional newspaper classified ads. Here’s my thinking:

Most private party sellers do not want lots of phone calls during the day when they can’t return them anyhow.

Publishing email addresses in a public forum is a bad idea.

We now have “leverage” over the transaction and help facilitate (monetize) the transaction.

Privacy. In general this is thought to be a good thing.

How do you feel about this direction for classified ads? Will this cause a disconnect or delay in the transaction process?