If everybody understand the risk, then nobody is being scammed.
You can't know that everybody understands the 'risk' because. firstly, you can't define what the risk is as a probability value outside of 'it *will* collapse'. You basically decide when you're going to steal the last 'investors' money, which is no better than running a lottery where you manually choose who will win and who will lose. Secondly, you cannot ensure that EVERYBODY who participates understands what they are even sending money to. There are enough people on this forum who struggle with the English language to negate your claim that everybody understands because multiple PMs I receive are evidence that, no, not EVERYBODY understands.
This means you are running a scheme which will rip a number of people off.
That is the definition of a scam.
There will be always a group of people who clams that they didn't know about the risk. The same applies to every gambling service.
We don't steal as the rules are clearly defined, and we respect them.
You basically decide when you're going to steal the last 'investors' money, which is no better than running a lottery where you manually choose who will win and who will lose.
I agree with you. But there is need for such gambling services, and we see nothing wrong in it. It's up to you whether you take the risk.