Well, since he is out of town it doesn’t make a lot of sense to ask this since only he knows what he is thinking.
I must assume though that he will use or has used due diligence. Last thing I heard he had decided against selling it anyway.
How come you assume the worst?
he’s offering to sell a casino’s mailing list to anyone who wants to buy it
I don’t see where it says that in his post.
I am the first person to yell foul when bad things happen with email lists – you were not around to see Dean take on a major spammer and me joining in, with the result of having our servers targeted with enough spam to bring them down.
I have a newsletter and it took me some 4 years to collect subscriptions. Thanks to spammers some people who want to get the letter cannot because their ISP blocks it automatically.
Ah, this reminds me to include instructions about white listing in the opt-in message. 
Anyway, I think you have seen so much bad spam that you automatically assume the worst – which I can understand. I get pi$$ed at it too.