I mainly have been buying and selling photography gear and outdoor power equipment of late but when I did list my 2019 15" MacBook Pro a couple years ago I got nothing but ridiculous low-ball offers and scam replies. The scams were the typical "I will pay over your asking price plus shipping via PayPal" to which I always responded with "I don't use PayPal but I will accept your offer if you can pay with Bitcoin, here's the payment address..." which always ended the conversation.