Tried to be scammed twice now

I am fairly new here, but have been tried to be scammed twice now. Both of them had the same story. "I'll buy your account only if I can try it first". "How do I know you won't steal my money then not follow through" I understand these concers, but if you don't trust a buyer then don't buy from him. It's in this sites own sticky notes not to do this practice. I quote from the Art of Saftey "NEVER EVER give a look-see at your account.NEVER give your information to ANYONE. if they are THAT hard up, then move on and tell them to fade away.If you are the seller, ACT LIKE IT.Do not be some push over lemming,so hard up to sell that you become [stupid]
The trades i have done at realpoor have all gone off without a hitch. My ebay sales, the same. I offer, you want. You pay, i give. Thats how it works and there is no budging. If you give in then you may be giving it up, keep it in mind"

These are the scammers emails:

cradams@hotmail.com.uk
paperplatebz@hotmail.com

Look, you want me to do something ?
You cannot follow our rules,so how do i know your not lying ?
READ THE RULES.
If you do a deal through AIM/MSN or email, your tough luck if you get scammed as we tell you ALL to use the PM service on the site .

paper has been banned here already.