Seems like the same person. I will add a tag on profile.
Scams are not moderated so it would stay there. So at this point you can only report the profiles who are promoting the site.
Best is to do due diligence before beginning the deal. Only ones falling for those are the ones who doesn't takes up necessary precautions just so that they can finish the trade quickly.
Hopefully by constantly banning his accounts and reporting his threads for multiple bump abuse, we can prevent him from scamming others. Takes a few minutes to report a thread so I don't even mind doing that. If I can even prevent a single scam then I'm happy.