People like you are the only ones that suffer.

They ban when reported and why do I care that you banned my free account?
I don't. I will make 20 more. Why do I care?

They can't fight this. Runescape made it so you have no reason to multibox. As long as there is a benefit to it, in a free game people will do it. They don't care about ethics. If they did, it wouldn't be an issue in the first place.