The dicks who will get you banned are either students, some company or die hard players with a Jagex mod in their friend list.
We've had multiple bans via our livechat, the 'customer' was trying to sell gold or buying a small amount of cash to let you verify your ingame name. When you've done this you'll be banned immediately (when a Jmod is online) or you'll have to wait until a Jmod comes online. They also try to let you help them. They're pointing out it will be helpful for you to give your competitors ingame names so they will get it banned to reduce competition.
Ip's of this type of customers are leading mostly to and provider called 'Ziggo', this provider is using a dynamic IP range which makes it difficult to link these customers. Also we've had an IP which was from a business who got us wiped (banned these days).
So all together it's hard to do something about it, they're even trying to expand their network by letting Sythe members help them, it's expected some has fallen for this offer. I suggest everybody uses an different mule for buying and selling. Make sure you've no cash on your buying account, also don't put too much on your selling account. At least make sure you don't have to much in stock, every $$$ you've put into RS gold is a very high risk stake.
Cheers!
