I think we have to try harder to find good content these days. AI, whilst continuing this, did not start it. The masses becoming ‘online’ started this. More nonsense got posted because everybody thought that every one else should hear their voice, and what they had for breakfast, and how their little toe bends slightly differently to their fourth toe.
It’s just become over populated.
The fediverse feels quite nice to me because it isn’t so populated yet. People don’t seem to be screaming over eachother so much.