The reality is that microblogging, whether it be on X or bluesky or mastadon or even facebook posts, will ALWAYS be lower signal, lower value than real, curated or effort filled content.
I like John Green a lot, including his vlogs that are just him speaking about stuff he doesn't know for half an hour, but I still do not go read what he posts on Bluesky, because it's as low quality, low signal, low intent, and low effort as comments here on HN.
It's just not useful. It's not a good use of my time to read random tweets from people.
When I first got a twitter account in like 2010, I very very instantly recognized it was not for me. If something is important, someone will take the effort to make an actual piece of real content about it, like a blog or video or essay or book. Hell, even a thorough reddit post is better than microblogging.
If it's not worth going through that effort to get the message out to people, why should I consider that a valuable message?
It's emblematic of the past 20 years of social development in my opinion. If the only thing stopping you from getting the word about something super duper important is that writing a page essay is too hard, nobody really needs to care about that, because writing an essay is so easy we make children do it
It's all noise. The signal doesn't go on twitter, it goes on real platforms where you might make money from good signal, or like, a freaking scientific paper, or the front page of a news org.