> they stopped using the text because some forum campaign that promoted typing cursewords instead of the unkown word. they probably started showing cursewords o

> they stopped using the text because some forum campaign that promoted typing cursewords instead of the unkown word. they probably started showing cursewords on the rendered search highligths on google books. If I remember correctly, Google later on also sometimes showed two "known" words or, if they had actual other evidence that you are human, two unknown words.