Your posts were in fact spam, if you want to discuss it with him you can do that via PM.
If he scammed you simply post in the Scammer Accusation.
Quote (Sgull @ 6 Jun 2011 04:35)
It doesn't always inform you so easily when someone has sent a moderator a PM

And this - you do not see if a post is reported via PM.
Just telling the user "report it via PM" and completely ignoring the report isn't really useful.
Quote (313Matt @ 6 Jun 2011 04:38)
Back to my original question: Why didn't the moderator I sent a message to say anything to the other person?
There is sufficient proof in the s/a sub forum
You don't see if the other user received a PM.
About the "sufficient proof in the s/a sub forum": This will be dealt with, your "scammer" posts will not help with that.