noun
fake review; paid-for review
Refers to a deceptive online review written by someone paid or otherwise incentivized to boost ratings, often associated with サクラ (shill/plant) practices.
あのレストランの高評価はサクラレビューばかりだ。
Those high ratings for that restaurant are all fake reviews.
サクラレビューを見分
It's hard to spot paid-for reviews.