You're being paid 2.88% to absorb price risk. Only ~2.88% of it is real fees — and they stop covering impermanent loss if SIERRA-USDC diverges more than ±63%.
Real fee/staking yield: 2.88% · token emissions: 0% of the headline.
Break-even fact: a ±63% move in SIERRA-USDC erases a full year of the fees you actually keep (~2.88%). Whether that move happens is up to the market — but any emissions inflating the headline will fade regardless.
Source: DefiLlama. Verdict is a heuristic over public data, not financial advice.