It's people posting things as a form of self-advertising. Some who actually put "blogger" on a resume. Many post tutorials to come up on a search on their chosen skill (or a search for their name). The tutorials are generally poorly well thought out and shallow. Like a lot of people post overcomplicated architectures, with the reasoning being "some famous guy or company used it".
So posting an article with these networks get you associated with that crap. I would like to see something with a proper quality filter. This isn't easy, I understand, which is why the big blogging platforms don't do it. I'm not looking for TikTok-style catchy/addictive recommendations; I'd like to see something the quality level of Steam.
I'm also iffy on AI-guided writing. I love AI-based writing and I pay for GitHub Copilot, but as a platform, that just encourages people to churn out low quality articles.