.meaning they did not remove the ballast as was required.
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Like you say.. Meaning they did not likely read, and obviously did not follow the instructions.. DUH...
I also get tickled at people who will rate a product 5 stars and hope to use it soon....
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That kind of statement could mean the person is a paid reviewer.. Just in it for the $...
I have a friend who routinely is sent money, mainly by Chinese companies, to review sporting goods products, mostly in $30 or less range.. He is to buy the product on Amazon, thus making him qualify as an Amazon customer for the review.. He is very picky about the products he reviews, and is not afraid to down rate a product if it does not live up to the standards he expects from his pre review research.. Also some products he has researched and said no to doing a review..
So saying, search reviews with a grain of salt, plenty of skepticism, before buying..