In the Naruto anime, in episode 132, Itachi told Sasuke that if he obtains the Mangekyo Sharingan he would be the third person to get it, but the Naruto wikia gives a list of 18 wielders.
Why does Itachi think there are only 2 users of Mangekyo Sharingan if there are a lot more? Did all of those users got it after Itachi, did Itachi just ignore those users existence, is his Mangekyo Sharingan another type of Mangekyo Sharingan or what? Could it also be a plot hole? Kakashi got his Mangekyo Sharingan when he was young and saw a friend die. And Itachi counts himself and Uchiha Madara as the 2 users, then, why he doesnt count other users as Kakashi and the others listed in the wikia?
Why is this so?