Defi staking is good, the only is how the way some project abused it by giving a crazy APY% like Sushi and AMPL Geyser and many more. This kind of over APY% is already a ponzi scheme. Yes you might get a high return on staking but the problem is the value of token itself. Due to many tokens added on supply from mining, the price of token dump tremendously and the interest you get on staking is not sufficient to cover losses.
But overall the idea of DeFi staking is good. The only problem was some project is abusing it just to create a short term hype on there project.
Define the (scam) DeFi.
"Too good to be true" so it is not good actually. Only the early investors in DeFi and wise investors who invest in early days and have plan to cash out when price is high can get profits. They have clear plans to cash out and don't hesitate to wait for higher price to cash out.
The temp promised too high profits from farm/ yield DeFi tokens is the same as stake & masternode coins in the past. It did not last long. Believe me, you will see the price of DeFi tokens when they are active traded fall to lower and lower.
In stake, farm, yield, the rate of reward is important. You can check the advertisement on x10 rewards for early investors of SUSHI. It is a shitshow! Developer moved their tokens and dumped it is a terrible story. It is what we see but we don't know that developer buy some more tokens and farm in early blocks and cash out from anonymous address. We don't know and it is not strange if they do that.
Today, the block reward is still x10. Be cautious!
New rewards per block 1000 SUSHI
However, For the first 100000 blocks (~2 weeks), the amount of SUSHI tokens produced will be 10x, resulting in 1000 SUSHI tokens being minted per block. This is to incentivize early farmers and adopters of the protocol and to help in The Liquidity Migration™️.
https://coinpedia.org/news/sushi-dumped-still-a-good-gain-option/