I bought a popcorn bowl that turned out to be terrible. It came with a leaflet coupon saying if I left a 5-star review, they would send me another bowl for free.
The comment I tried to leave was a short, fair, polite statement along the lines of 'this bowl doesn’t meet the claims X and Y on the description, and came with an offer to trade a good review for another bowl for free." That review got flagged by the automod and was ultimately rejected. If I recall, the rejection message wasn’t even specific on what rule my review broke.
Just cross your fingers we don’t wind up with that ridiculous chimp we saw in one of their previews.