6% interest is a small price for me to risk my BTC on any platform. There's a lot of scams out here in the crypto space, handing anybody your seed phrase isn't the best idea in my opinion for just a 6% reward. I can only risk my asset if the reward was bigger (50% - 70%), but we'll know only a scammer would make such offers.

There are other safer ways one can earn more BTC than that. You can buy BTC when the market is down and sell when everywhere is green. It's more safe and profitable than risking your assets with a platform that may turn out a scam.