Alex, a few proposals regarding this situation:
- Ban this scammer to the Do Not Trade list.
- Remove the content from his sale posts.
- New rule for STISO: anyone wishing to post on the STISO must have at least 100 posts on the other boards, excluding Support and LOLAQ. No sales or trades or ISOs until then. I'll allow eBay topics since eBay has their own scam prevention system, but they don't count towards the 100 posts needed.
I've noticed that all the people I've placed on the Do Not Trade list and haven't removed have a very small number of posts. In essence, it was a hit-n-run - make an account, post a sale or trade, get the other person's goods and abandon the account.