John,
On this scam, he is asking you to work/offer /contact him outside of ebay. So no protections.
It is against ebay rules but they cheat around the ebay safeguards by using a screenshot/photo of the description and illegal bits rather than actually typing it in. In that way the safeguards that read descriptions etc for illegal activity are bypassed.
Unfortunately, as in every walk of life, there is a small minority of cockwombles spoiling it for the decent majority.