Lets Deal scamming

Link to scammer's Sythe profile: http://www.sythe.org/members/357277-lets-deal.html
Briefly explain the trade:
Recently, a spawn world was implemented on SS rsps to beta test updates where you can spawn anything. He updated his thread with a picture of a red partyhat and several other items today, just after the spawn world was implemented
As you see here, a SS developer links the spawn world:
http://forum.soulsplit.com/community/index.php?/topic/66889-duel-arena-beta-test/page-2#entry650126

http://www.sythe.org/runescape-private-server-markets/1622575-selling-400b-ssgp.html
http://puu.sh/4ilrj.png

On his thread if you look at the chatbox you can clearly see not only a player saying "Spawn time" meaning he's about to spawn items, but if you look at the minimap the market is absolutely empty, meanwhile the market is NEVER that empty on ANY world, even the PvP worlds.

Also, if you look at his vouches he only has one and it's him selling someone rs gold which it's probably safe to assume was in exchange for him buying something, if you look at his threads there's almost never any posts of someone claiming they've bought something off him, and almost all of his ssgp threads are 300b+, 400b+ and even 1t+ in one case even though it appears he's never successfully sold to anyone.

It seems he's just been trying to scam a long time on here and either never been caught or never been successful.

How they scammed: Read above^
Proof that you were not talking to an impostor:
Trade screenshots:

 

Going to ban him. It's obvious that he's trying to scam because he's selling items he doesn't even own.