This may very well be a new setting somewhere, but I sure can't find it if it is. Take this product
for instance. All of the top reviews there are lacking any review text. They only have ratings. But if I go to the database (Or even just edit the review as an admin) the review text is there. It's just not showing up on the front-end.
And yet the bottom review on that page DOES have review text.
I don't know if this is a bug or a feature, so I'm filing it here. Why are all of those reviews missing their text?