Some hyip open to get opinion of members. (survey example). so they can live with site.

because a lot of hyip are ponzi so when they reach a lot of money the became scam

For me in my opinion I think as 99% of all hyips are scam there fore they know that once they have been in business for 5 or 6 days every one will know that it is a scam and he will post it on forums so that every one will be aware.So they close down so quickly after making some quick bux.What do you think guys?

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hyip never last long because it cannot sustain to pay investors high ROI as promised. Also, they run away with investors money.

I may say that hyip site is simply created to scam people money. Unless they call it a hyip game then I will remove my accusation.

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the answer is simple, because 99% of hyip are ponzi, they pay their members with money that come from new investors.
When there's no new investors to the program, it will be a scam for sure.

yup, ponzi scheme
only 1% is t best
trully investment program
by showing their activities

Because of their lost in businiss .