I have yet to have an obvious scammer contact me to purchase cards.
Recently I did have someone reach out to me asking if I needed some cards that I have posted about several times over the last few years. I looked and it was a long time member with over 2K posts. I ended up getting 3 cards I had been trying to find for a few years.
So with all the scammers reaching out there is also some great guys like member edjs reaching out with real cards. Had an amazing transaction with Ed and can't say enough great things about it.