Binance is giving 1 5-25% APR in real time on USDT with no limits on earn account, how safe is it?

Binance is giving 15-25% APR in real time on USDT with no limits on earn account + an extra 5% on the first $500, how safe is it?

I've not seen anyone talk about this, and I found it extremely suspicious...

In the last months it has been fluctuating in the 10-15% range. Right now is more on the 20-25% side.

How secure and long term this is?

Is this a Binance thing or is this a Tether thing? Which one is going to explode? /s

On USDC is 8.8%, so muuuuch less than USDT, and another example is USDC on coinbase giving 5.10% APY, which sounds more realistic than this.

I don't know if this is a bull market thing or if they're just chasing people, but a year ago was 3-7% if I remember correctly...

https://imgur.com/a/daPkPaF here is the APR fluctuating in the last 24h.