Are you talking about ponzi scams which promise to give 1% daily forever or 0.1% daily forever etc? Sorry, but you will end up losing money in that scheme. Nothing last forever. Ask them do they pay even your children and grandchildren? Search google for ponzi scams and also search for the people arrested.
No Scam, I know several sites that pay a daily interest rate for members who "Park" their BTC or altcoin. They can be withdrawn at anytime and very reputable. No worry for scam, as I already lost with bs sites, not misleading anyone here, I actually have ethihcs.
The loan is a way to increase the interest payments for a period resulting earned BTC or altcoin which can pay for the loan as well as earn a small amount for myself.
They can be withdrawn at any time... until the site closes in an exit scam. Are you sure you're not on a ship waiting to sink? You're looking to make a really high risk investment on credit here. Could you share just what sites are making these scary claims?