There's a number of companies offering something similar, like Celsius and Blockfi and a few others. Do your own research, and no need to go near it if not comfortable with it.

Things could go either way from here on out, perhaps crypto is the future and 8.88% interest for stablecoins will be the standard; or perhaps it'll all come crashing down and all cryptos go poof in a few years. Who knows? Point being, when a new paradigm comes along, it usually seems strange and uncomfortable enough to feel suspicious. Maybe it's legit, maybe not, there's a chance for either case.