that is exactly why i NEVER give any CL add the option to email me, its phone number or nothing. i had to close one of my email accounts because the first time i posted a CL add i didnt hide my email address and i was flooded with that kind of BS
this doesnt stop it, I get scam texts and phone calls all the time. My opinion, its stupid but it is what it is. price you pay for using a free internet service, just report all the email addresses as spam when they come into your box and enjoy a coke.