ONION Soft Staking in Kucoin

[Pffrt]

Kucoin has decided to stake their customers DeepOnion and will share a certain percentage of the reward according to their user's holding. How do you measure this one? I think staking in my own computer is okay, why to trust others?
https://www.kucoin.com/news/en-onion-soft-staking-official-rules-cash-back-investment-program-for-deeponion-onion-holding