The apostle John understood the antichrist to be all who deliberately spread religious deception about Jesus Christ and Jesus’ teachings (Watchtower, June 2015)
Hmmm. It seems the Watch Tower Society has commented on this whole "Antichrist" thing before:
Are They “Antichrists”?
The Greek Orthodox Church also claimed: “Jehovah’s Witnesses not only cannot be rightfully called Christians, that is to say, disciples of Christ, but on the contrary, they are . . . the antichrists.”
What does the Bible say of “antichrist”? At 1 John 2:22 it states: “Who is the liar if it is not the one that denies that Jesus is the Christ? This is the antichrist, the one that denies the Father and the Son.”
Thus, the plain fact of God’s inspired Word is that an antichrist does not accept Jesus. But Jehovah’s Witnesses do! They most fervently believe in Jesus and follow his teachings! In fact, no one can become one of Jehovah’s Witnesses without accepting Jesus as the divine Son of God, who came down from heaven, was impaled and resurrected, and who returned to heaven.
So anyone who says that Jehovah’s Witnesses are “antichrist” either is badly misinformed, is blinded by prejudice, or has evil motives. (Watchtower, 01. December, pp. 5-6)