We have our share of scammers. I try like heck, with multiple layers of registration security, to prevent them, and I removed them when I find them. As I have posted more than once in Forum Happenings, if some member PMs you saying they have a friend or relative who has the part you need, then they provide a gmail account email address - PLEASE REPORT THIS TO ME! This is (probably) a scam!
I banned three such scammers just in the past week.