Well, my takeaway on Y2K centers on 2 things:
1. Why was the public so irrational and what part was it intentionally dramatized for profit?
2. Why weren't the "experts" better at communicating it was all a "nothing burger" in the first place?
I suspect profit played a big part and the experts were not certain themselves and the public has learned little.
There was a lot going on, society was bombarded with a lot of dark and fear type messages.
We had the Y2K "scare".
But we also had save the planet types telling us all of that stuff, GM made that electric car that they recalled and destroyed for one example that came of that.
Then Katrina happened and it got blamed on climate, besides all the sorrow around that event to begin with.
9-11 was a dark event
We had mayan calendar types yelling about that, i forget if it was 2008 first and then got changed to 2012? Whatever.
Look at some movies that were out at that time- The Sixth Sense and the Matrix both came out in 1999. Both are very much centered on questioning reality and what life means. They are not the only movies or TV shows from that span of years with an undertone of "life is not what you think it is". I am not bashing those movies, but observation requires I acknowledge the subtle themes.
Despite official numbers, inflation ran away in those years, for daily need type items like food etc. Home prices balooned and crashed(which became more news) and the "economy sucks!" became a thing. While not as evident as recent years, that era had a major impact on how blue collar middle class lived life compared to the decade before.
Anyway, I am sure there are more examples. But the "darkness" from all of that stuff had a cumulative effect, and some of it spread into things and influenced things in subtle ways. Music, media, people's outlook on their future..... I might be remembering wrong but somewhere in there one of those "happiness" surveys came back with more dire results to reinforce the whole situation.
I remember growing up in the 80's and into the 90's, and I am aware of all the economic and social issues of those times even though I was young.... in so far as they affected rural America anyway. Regardless of those trials, it was "better" overall I think. Maybe it was the end of the cold war and people getting out from under that pressure, or just how the average worker lived life, but I keep waiting for that basic general "mood of society" to circle back. I think one way or another society is going to have to suffer some major pain to correct 30 years of going down this current road to do it. I have enough years left in me(theoretically) that I think it is worth it. But I think a lot of people won;t think so and would rather keep struggling and worrying about things we didn;t used to have to worry about then endure that pain in the short term. Time will tell.