Please, please. "One" can be pluralized along with most all the nouns in modern English, and it has been for hundreds of years. Look no further than the King James Version of the Bible: Matthew 10:42 "and whoever shall give to drink unto one of these little ones a cup . . ." Mark 9:42 "and whosoever shall offend one of these little ones . . ." This contrived controversy about "ones" is the kind of game played by those [ones] who want to act like [that is, as if] they are very educated devotees of English. But in reality, haven't read very much at all. They just know what the word games are. (Example: "For whom it is" rather than "who it is for".) They parrot so-called grammar rules, 80% of them made up in the last 150 years, that they memorize like the sales pitch of a snake-oil salesmen. We have these types running all over Japan, "teaching" English. One [!} wonders how much reading they've ever done along a way, whether it be novels, anthologies, legal opinions or what have you.