Staking Injective (INJ) is generally considered safe for the following reasons:
Staking on Injective helps secure the blockchain network by funding validators who propose and attest to new blocks.
Staking INJ generates one of the "safest and most predictable ways to get rewarded in the crypto space" according to the Kiln website.
The rewards for staking INJ come from the blockchain's native token inflation and a share of transaction fees, providing a stable and reliable source of yield.
Kiln, the platform mentioned, provides enterprise-grade staking services, which adds an extra layer of security and reliability.