Anybody else notice this recently?

This appears to be new for me over the last few weeks. Usually when you got an email response it was from the person's actual email address with a cc to a craigslist email, but now craigslist appears to be masking the reply email addresses.

I guess they're doing this to try to cut down on email harvesting spam, but I thought that being able to see the person's actual email address was a useful indicator to see if someone was a real person or not (some are more obvious than others).

Also, I wonder if this will prevent you from continuing an email conversation with a seller after the ad expires, since craigslist used to deactivate the email aliases of expired ads.