I find plenty of nuanced takes on HN. Honestly I think it's easier here than elsewhere; I just have to filter down to them. On other platforms, polarized takes are incentivized by the struggle for "engagement". (Youtubers often have fairly nuanced takes, but are incentivized to clickbait by misrepresenting themselves as believing something more extreme. Then they're incentivized to make a longer video, wasting your time and distributing the interesting bits across the middle.)

I think LinkedIn belongs in a natural category with Reddit and Twitter far more than HN does.