It's when I first noticed how loud, oblivious and frenetic online interaction became at large and how - by self-selection - sociopaths took the lead on the stage that big central platforms provided them. But what I found/find even sadder were/are the engagement numbers around shallow multimedial diarrhea and influencers.
It's also the year I sharply cut back on my internet usage by about 90% and quit all communities (perhaps prematurely, but I was sort of shellshocked).
HN is almost all that's left (except one venerable gaming community) and it itself I consider one of the shallower communities (this is structural because of the lack of longitudinal communication since discussions are keyed on links, not longer-lived standalone threads. The crowd makes up for it though).
And now... I'm glad I made the connections and experiences I did before then, some of which carried over to today. I also learned how the psychopathological spectrum does not just exist in textbooks and how to bail when confronted with it.
Maybe when I have less things on my plate I'll stretch out my feelers once more and visit a couple online villages like I enjoyed so much back then.