This is a very fxxxed up mentality. Please be magnanimous. Think great and dun have such loser mentality. If you think it is a scam, dun participate. If you think it is OK to participate and make some money and get out before it collapse, indirectly you are hoping for suckers to bail u out. This is a very selfish behaviour. If nobody participates in these schemes no matter how early, they cannot take off and there will be no victims. Do good to the society. At least dun encourage scumbags with their scams.

By participating, you have the intention to profit at the expense of others. Whether you actively participate or not is not as important as your motive. If nobody joins after you join, you will lose your money. Your intention is for more people to join after you, and quick, because you need the greater fool to come in. Don't kid yourself by saying you are not scamming others. The act of participation is scamming.

Say u play a game. You r the first person to go through this door and you can collect 10k after you go through. You know the 10th person that pass through will get his head chopped off. So now, u are telling me it is not your problem that they get their head chopped off because you are smart enough to be the first one to go through? If there is no 1st to 9th person going through the door, will there be a 10th person who is the victim? Yes, you are indirectly a scammer.