I appreciated your wall of text! Lemmy, and social media in general, are pretty terrible places for nuanced discussion. The system is biased towards short and vauge posts. As you said though, they can be a good stepping stone.

There's been more than one time that I've seen people arguing in a thread and decided I'd look up the topic to see who is right. In the end it doesn't really matter what people in the thread were saying. It got me interested in the topic and I searched out more reputable sources of information and hopefully I learned a bit!

That being said, there are also threads where people post insane takes. You really need to have a litmus test for whether or not a post should even been considered.