This. I used CL plenty with zero scammer interference, but always spell out the number and / or email in a sentence buried in the ad text someplace. The thing about scammers showing local numbers is one of the newer tricks, just a caller ID mod. My Dad answers any and every call and tries to have frank discussions, lol. I don't respond to anybody not already in my contacts because if they can't leave a message they for sure ain't a person needing to speak with me.