Perhaps the following quotations from Watchtower publications would be of interest to you:
We see no reason for changing the figures-nor could we change them if we would. They are, we believe, God's dates, not ours. But bear in mind that the end of 1914 is not the date for the beginning, but for the end of the time of trouble.
Zion’s Watch Tower, July 15, 1894 (Watch Tower Reprints, p. 1677)
We resolve that we shall obey all instruction received from the Watch Tower, knowing that such proceed from the higher powers, Jehovah God and Christ Jesus. We resolve to be completely obedient to the Society as the visible part of the Great Theocracy.
The Watchtower, February 1, 1940, p. 47
The Watchtower does not consist of men's opinions.
The Watchtower, January 1, 1942, p. 5
This is not giving any credit to the magazine's [The Watchtower's] publishers, but is due to the great Author of the Bible with its truths and prophecies, and who now interprets its prophecies. He it is that makes possible the material that is published in the columns of this magazine.
The Watchtower, April 15, 1943, p. 127
Jehovah's prophetic word through Christ Jesus is: 'This generation (of 1914) will by no means pass away until all things occur.' (Luke 21:32) And Jehovah, who is the source of inspired and unfailing prophecy, will bring about the fulfillment of his Son's words in a relatively short time.
The Watchtower, May 15, 1984, p. 5-7
Jehovah had a work for them to do… He put his “words,” his message, into the mouth of his servants for them to proclaim earth wide.
Survival Into a New Earth (1984), p. 109
You will be interested to learn that God has on earth a people, all of whom are prophets, or witnesses for God. In fact, they are known throughout the world as Jehovah's Witnesses.
Awake! June 8, 1986, p. 9
Why Awake! is Published … Most important, this magazine builds confidence in the Creator's promise of a peaceful and secure new world before the generation that saw the events of 1914 passes away.
Awake! Masthead, all issues from 1988 through October 22, 1995
The writers of Watchtower publications avoid the use of the specific word, "inspired" to describe their writings so that, when confronted with their failed predictions, they can excuse them by saying that they "don't claim to be inspired." But their claims regarding what they publish are tantamount to a claim of inspiration. To say, "we don't claim that our publications are inspired," but then to say that the teachings in the Watchtower are not the opinions of men, that Jehovah has put his words into their mouths, that all of them are prophets, that their teachings proceed from Jehovah God and Christ Jesus, and to refer to their failed predictions as "Jehovah's prophetic word" and "the Creator's promise" is to make a distinction without a difference. They claim to be inspired in every possible way except for the actual use of the word. Since the predictions they have presented have failed consistently, there is no alternative but to regard Jehovah's Witnesses as false prophets in the biblical sense of the word. Note Deuteronomy 18:20-22:
"But the prophet who presumes to speak a word in my name that I have not commanded him to speak, or who speaks in the name of other gods, that same prophet shall die.’ And if you say in your heart, ‘How may we know the word that the LORD has not spoken?’— when a prophet speaks in the name of the LORD, if the word does not come to pass or come true, that is a word that the LORD has not spoken; the prophet has spoken it presumptuously. You need not be afraid of him."
Notice that the text doesn't say that the prophet needs to claim to be "inspired." It is only necessary that he "speaks in the name of the LORD. [Jehovah]" JWs certainly do claim to speak in the name of Jehovah, and, as the quotations above show, they have claimed to be His prophets. According to these verses, their teachings constitute "a word that the LORD has not spoken." They are false prophets and should not be followed.