Sometimes the commenters actually have genuine insights that must reports/articles will never mention. Sadly, I'm quite a cynical person that expects everything to have a spin unless it comes from an authoritative source.

In general, I'd say it's about confirmation bias and having a fluffy statement that confirms preconceived notions is hardly interesting to me. If there is anything of substance that contradicts any narrative or general consensus than I find the signal in the noise highly valuable.

But I can't speak for the general case because I don't use any social media and find rage bate quite cumbersome.