And of course there was that November 1995 Watchtower that seriously changed their thinking on the bogus 1914 doctrine. In that issue they stated that "this generation" no longer really means the generation alive since 1914, but now simply means the generation that will be living at the time of those signs mentioned in Matthew.
There are tremendous and far reaching implications that this change had on many of their other doctrines, such as the Anointed Class doctrine. I remember even in 1991 private discussions in my congregation that since "this generation" will by no means pass away before all these things occur (i.e., the signs of the end), then Armageddon must be coming withing ten or so years, 20 tops. Why did we believe that? Because the WT taught that some anointed would still be alive when Christ came. So we reasoned that since they're so old, and that they'd almost certainly be dead within 10 or 20 years, that Armageddon was imminent.
Of course that all changed in 1995.
However, what troubles me the most is that when they change their teachings they say it is Jehovah who is "stirring" the congregation of His people. That's a rather dangerous assertion. I'm reminded of something from Jeremiah. Jehovah was instructing Jeremiah to expose the error of Israel and Judah, and in so doing went on to say about their prophets: "Do not listen to what the prophets are prophesying to you; they fill you with false hopes. They speak visions from their own minds, not from the mouth of the Lord. I did not send these prophets, yet they have run with their message; I did not speak to them, yet they have prophesied. Yes," declares the Lord, "I am against the prophets who wag their own tongues and yet declare, 'The Lord declares.'" (Jeremiah 23:16, 21, 31) Sound familiar? I wonder why they have never asked for forgiveness for the error of their teachings. Jehovah would certainly forgive. Sadly, though, that's not the case.
And it's interesting to imagine that if some Witnesses started teaching at the doors something the GB threw out because of "new light", would they be disfellowshiped for teaching something now considered incorrect?
Pralis