Koi Sushi
Shop 20/1145 Wynnum Rd, Cannon Hill QLD 4170, Australia · 1,111 of 1,112 reviews · 99.9% coverage · googleReviewsChecker
High manipulation risk
Reviews fetched
1,111/1,112
Credible-reviewer 1★ rate
3.6%
Outside flagged months
43%
5★ from ≤2-review accts
23.9%
→
The estimate uses the lowest sufficiently sampled credible-reviewer cohort and never raises the displayed average. Manipulation risk does not subtract stars directly.
Why this boost score?
Campaign-like months contribute to the risk verdict, while the rating remains based only on observed credible-reviewer evidence. Elevated risk begins at 35/100.
| Signal | Observed | Points |
|---|
| 5★ from ≤2-review accounts | 265 reviews (23.9%) | 25.6/30 |
| Reviews on burst days | 103 reviews on 11 days (9.3%) | 27/35 |
| Peak/median monthly ramp | 10.3× | 9.7/20 |
| Tightest five-minute cluster | 4 reviews | 1.7/15 |
| Total | | 63.9/100 |
Reviews per month by star rating
stack height = total reviews · gaps = zero-review months · outlined stacks = non-seasonal campaign-like months
Reviews per day (recent)
shows the 160 most recent active review dates; scoring uses the full dated history · red = burst day (≥8)
Credible reviewers — the quality test
| Reviewer pool | Rating | 1★ rate | ≤3★ share |
|---|
| All reviews | 4.77 | 2.3% | 5.1% |
| Veteran (≥20) | 4.537 | 2.3% | 11% |
| Veteran (≥50) | 4.449 | 3.7% | 13.1% |
| Most experienced (≥100) — estimate basis | 4.411 | 3.6% | 12.5% |
| Local Guides | 4.574 | 2.7% | 10.3% |
| Credible union (Local Guide or ≥20) | 4.574 | 2.7% | 10.3% |
| Credible outside campaign-like months | 4.426 | 3.6% | 14.7% |
Non-seasonal campaign-like months (10)
Each month is compared with the same calendar month in other years; ≥90% 5★ distinguishes positive campaigns from ordinary busy or complaint-heavy months.
| Month | Reviews | Other-year median | YoY ratio | 5★ | Mean |
|---|
| 2025-08 | 82 | 9 | 9.1× | 93.9% | 4.9 |
| 2026-07 | 82 | 7 | 11.7× | 92.7% | 4.93 |
| 2026-01 | 77 | 7 | 11× | 90.9% | 4.82 |
| 2025-11 | 71 | 8 | 8.9× | 97.2% | 4.97 |
| 2025-10 | 70 | 7 | 10× | 90% | 4.79 |
| 2025-09 | 68 | 10 | 6.8× | 95.6% | 4.85 |
| 2025-12 | 68 | 6 | 11.3× | 94.1% | 4.94 |
| 2026-04 | 52 | 5 | 10.4× | 94.2% | 4.94 |
| 2025-07 | 37 | 7 | 5.3× | 91.9% | 4.84 |
| 2026-08 | 26 | 9 | 2.9× | 96.2% | 4.92 |
Burst days (≥8/day)
| Day | Reviews |
|---|
| 2026-02-14 | 14 |
| 2025-08-20 | 12 |
| 2026-01-22 | 10 |
| 2026-07-12 | 9 |
| 2025-10-03 | 9 |
| 2025-08-03 | 9 |
| 2026-03-27 | 8 |
| 2026-01-04 | 8 |
| 2025-10-23 | 8 |
| 2025-09-06 | 8 |
| 2025-07-22 | 8 |